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Nature & Science
Animal Skeleton (small) - American Bullfrog Specimen (Frog)
Real Frog skeleton (American Bullfrog - Rana catesbeiana) specimen encased in our proprietary developed lucite material. The specimen is crystal clear, transparent and indestructible. Safe,authentic and completely unbreakable specimen put real frog skeletonright at your fingertips! Anyone can safely explore the frog skeletonfrom every angle.
It is clear enough for microscope observation.
Size of the skeleton: 3.5 x 2.2 cm (1.4 x 0.9 inch)
Size of thelucite block is 7.3x4.2x2.1 cm (2.9x1.7x0.8 inch).
Each one comes with a beautifulcardboard box for easy storage.
Weight of thelucite block is 90 g and 110 g with packing box.
This is a handmade real animal specimen craft. Each one will be a bit different (specimen size, color and posture) even in the same production batch.
The picture in my listing is just for reference as we are selling multiple pieces with the same picture.
It is an ideal learning aid for students and kids and also a very good collectible item.
*** Wholesale is welcome.
We have a lot moreinsect specimenitems in my store you may log in my store to view the details.
Shipping cost:
Free shipping cost.
We send the goods to USA buyers by E-express, a kind of postal express service set up by with USPS and Hong Kong Post. It usually takes about 6 to 10 working days(depends on proximity to USPS international hubs) for delivery in USA.
We send the goods to other countries by registered airmail through Hong Kong Post. It usually takes about 12 to 18 working days for delivery, and it may take a bit longer to Central and South Bullfrog - Rana catesbeiana
Geographic Range
North American bullfrogs (Rana catesbeiana) are only native to the Nearctic region. They are found from Nova Scotia to central Florida, from the East coast to Wisconsin, and across the Great Plains to the Rockies. The natural western limits of this species are now confused due to their introduction into places as far west as California and Mexico. It is known that bullfrogs were introduced to areas of California and Colorado in the early 1900's. The species has also been introduced (accidentally or on purpose) into southern Europe, South America, and Asia.
Habitat
North American bullfrogs must live in water and are therefore usually found near some source of water, such as a lake, pond, river, or bog. Warm, still, shallow waters are preferred. Bullfrogs are becoming increasingly common in areas that have been modified by humans. Increased water temperatures and increased aquatic vegetation, which are common factors of lakes polluted by humans, favor bullfrogs by providing suitable habitats for growth, reproduction, and escape from four days after fertilization, spotted tadpoles emerge from the floating egg mass. The tadpoles have gills and a tail, which eventually disappears as the tadpole transforms into a froglet. Tadpole development is quite slow; it may take between one to three years to begin transformation from the tadpole stage into the adult stage. Adults reach sexual maturity after an additional two interval: Bullfrogs breed once each year.
Breeding season: May to July in the north and February to October in the south
Number of offspring: 20000 (high)
Gestation period: 4 days (average)
Age at sexual or reproductive maturity (female): 3 to 5 years
Age at sexual or reproductive maturity (male): 3 to 5 years
Breeding takes place in May to July in the north, and from February to October in the south. Fertilization is external, with the females depositing as many as 20,000 eggs in a foamy film in quiet, protected waters. Fertilization is usually, but not always, by one male. Tadpoles emerge about four days after fertilization. These tadpoles may remain in the tadpole stage for almost 3 years before transforming into frogs. Adults reach sexual maturity after 3 to 5 years.
Females provide the eggs with yolk before they are laid. There is no parental involvement in offspring after the eggs are laid. Newly hatched tadpoles can take care of themselves right average bullfrog lives seven to nine years in the wild. The record lifespan of an animal in captivity is 16 years.
Behavior
North American bullfrogs prefer warm weather and will hibernate during cold weather. A bullfrog may bury itself in mud and construct a small cave-like structure for the winter. Their hunting style is 'sit and wait.' Bullfrogs can wait for a long time for some type of prey to come by, then, with a flash of the tongue, they grab it and bring it back into their mouths. Bullfrogs are active both during the day and at night; they are most active when the weather is moist and warm.
Home Range
Adult males are very aggressive and defend their territories, which can range from 3 to 25 meters of shoreline, by physically wrestling with others.
Communication and Perception
The call of a male bullfrog has a low frequency and can be heard for over one kilometer. The sound is often described as a low rumbling "jug-o-rum". Bullfrogs also have a good sense of vision and sense vibrations.
Food Habits
Bullfrogs are predators. They usually eat snakes, worms, insects, crustaceans, frogs, tadpoles, and aquatic eggs of fish, frogs, insects, or salamanders. They are cannibalistic and will not hesitate to eat their own kind. There have also been a few cases reported of bullfrogs eating bats. Bullfrog tadpoles mostly graze on aquatic plants.
Known predators: great blue heron, great egret, belted kingfisher, turtles, water snakes, raccoon
Humans hunt bullfrogs for frog legs, but they have a limited hunting season in most states. Bullfrogs are also eaten by a wide variety of other animals, depending on the region. These include herons, such as great blue herons and great egrets, turtles, water snakes, raccoons, and belted kingfishers. Most fish are averse to eating bullfrog tadpoles because of their undesirable taste.
Economic Importance for Humans: Negative
Introduced bullfrogs may be driving native frogs to extinction in some areas. Colorado, among many other places, is experiencing problems due to the introduced bullfrog population. Bullfrogs may have been introduced accidentally to trout streams and lakes during the Colorado Divisions of Wildlife fish stocking operations. Bullfrogs occasionally invade fish hatchery ponds and their larvae are caught along with the fishes that are routinely stocked in ponds.
Economic Importance for Humans: Positive
North American bullfrogs help to control insect pests. They are important for medical research because their skeletal, muscle, digestive, and nervous systems are similar to those of other animals. They are often hunted for meat (frog legs).
Conservation Status
Bullfrogs do well with changes in the environment that have occured due to human modification, and are becoming increasingly common in areas modified by humans. Bullfrogs have a much higher critical thermal maximum than most other frogs, meaning that they are able to thrive in higher water temperatures. Bullfrogs have a longer breeding season and a higher rate of pre-metamorphic survivorship, which also allows them to be more successful than other frogs. In some areas, such as California, bullfrogs are driving other frog populations to extinction. One possible reason to explain why bullfrogs in California might have an advantage over other species native to that state is that bullfrogs evolved with a diverse predatory fish fauna in eastern North America. In California there have been attempts to control bullfrog populations by introducing new fish species that are their predators. Bullfrogs have evolved mechanisms to avoid predation by fish, such as less palatable eggs and tadpoles, and tadpoles that are not active much of the time, which reduces their exposure to predators. Native frog species of California are also suffering a decline because bullfrogs are efficient predators of frogs and tadpoles.
***
Item SpecificsCountry of Manufacture China
Payment by Paypal
Payment: By Paypal
Free shipping cost
Free shipping cost.
We send the goods to USA buyers by E-express, a kind of postal express service set up by with USPS and Hong Kong Post. It usually takes about 6 to 10 working days(depends on proximity to USPS international hubs) for delivery in USA.
We send the goods to other countries by registered airmail through Hong Kong Post. It usually takes about 12 to 18 working days for delivery, and it may take a bit longer to Central and South America.
Returns in 30 days full refund
Full refund for returns in 30 days.
Answer message in 24 hours
We will answer buyer messages in 24 hours.
Policy 5
Free shipping worldwide.
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Animal Skeleton (small) - American Bullfrog Specimen (Frog)
Real Frog skeleton (American Bullfrog - Rana catesbeiana) specimen encased in our proprietary developed lucite material. The specimen is crystal clear, transparent and indestructible. Safe,authentic and completely unbreakable specimen put real frog skeletonright at your fingertips! Anyone can safely explore the frog skeletonfrom every angle.
It is clear enough for microscope observation.
Size of the skeleton: 3.5 x 2.2 cm (1.4 x 0.9 inch)
Size of thelucite block is 7.3x4.2x2.1 cm (2.9x1.7x0.8 inch).
Each one comes with a beautifulcardboard box for easy storage.
Weight of thelucite block is 90 g and 110 g with packing box.
This is a handmade real animal specimen craft. Each one will be a bit different (specimen size, color and posture) even in the same production batch.
The picture in my listing is just for reference as we are selling multiple pieces with the same picture.
It is an ideal learning aid for students and kids and also a very good collectible item.
*** Wholesale is welcome.
We have a lot moreinsect specimenitems in my store you may log in my store to view the details.
Shipping cost:
Free shipping cost.
We send the goods to USA buyers by E-express, a kind of postal express service set up by with USPS and Hong Kong Post. It usually takes about 6 to 10 working days(depends on proximity to USPS international hubs) for delivery in USA.
We send the goods to other countries by registered airmail through Hong Kong Post. It usually takes about 12 to 18 working days for delivery, and it may take a bit longer to Central and South Bullfrog - Rana catesbeiana
Geographic Range
North American bullfrogs (Rana catesbeiana) are only native to the Nearctic region. They are found from Nova Scotia to central Florida, from the East coast to Wisconsin, and across the Great Plains to the Rockies. The natural western limits of this species are now confused due to their introduction into places as far west as California and Mexico. It is known that bullfrogs were introduced to areas of California and Colorado in the early 1900's. The species has also been introduced (accidentally or on purpose) into southern Europe, South America, and Asia.
Habitat
North American bullfrogs must live in water and are therefore usually found near some source of water, such as a lake, pond, river, or bog. Warm, still, shallow waters are preferred. Bullfrogs are becoming increasingly common in areas that have been modified by humans. Increased water temperatures and increased aquatic vegetation, which are common factors of lakes polluted by humans, favor bullfrogs by providing suitable habitats for growth, reproduction, and escape from four days after fertilization, spotted tadpoles emerge from the floating egg mass. The tadpoles have gills and a tail, which eventually disappears as the tadpole transforms into a froglet. Tadpole development is quite slow; it may take between one to three years to begin transformation from the tadpole stage into the adult stage. Adults reach sexual maturity after an additional two interval: Bullfrogs breed once each year.
Breeding season: May to July in the north and February to October in the south
Number of offspring: 20000 (high)
Gestation period: 4 days (average)
Age at sexual or reproductive maturity (female): 3 to 5 years
Age at sexual or reproductive maturity (male): 3 to 5 years
Breeding takes place in May to July in the north, and from February to October in the south. Fertilization is external, with the females depositing as many as 20,000 eggs in a foamy film in quiet, protected waters. Fertilization is usually, but not always, by one male. Tadpoles emerge about four days after fertilization. These tadpoles may remain in the tadpole stage for almost 3 years before transforming into frogs. Adults reach sexual maturity after 3 to 5 years.
Females provide the eggs with yolk before they are laid. There is no parental involvement in offspring after the eggs are laid. Newly hatched tadpoles can take care of themselves right average bullfrog lives seven to nine years in the wild. The record lifespan of an animal in captivity is 16 years.
Behavior
North American bullfrogs prefer warm weather and will hibernate during cold weather. A bullfrog may bury itself in mud and construct a small cave-like structure for the winter. Their hunting style is 'sit and wait.' Bullfrogs can wait for a long time for some type of prey to come by, then, with a flash of the tongue, they grab it and bring it back into their mouths. Bullfrogs are active both during the day and at night; they are most active when the weather is moist and warm.
Home Range
Adult males are very aggressive and defend their territories, which can range from 3 to 25 meters of shoreline, by physically wrestling with others.
Communication and Perception
The call of a male bullfrog has a low frequency and can be heard for over one kilometer. The sound is often described as a low rumbling "jug-o-rum". Bullfrogs also have a good sense of vision and sense vibrations.
Food Habits
Bullfrogs are predators. They usually eat snakes, worms, insects, crustaceans, frogs, tadpoles, and aquatic eggs of fish, frogs, insects, or salamanders. They are cannibalistic and will not hesitate to eat their own kind. There have also been a few cases reported of bullfrogs eating bats. Bullfrog tadpoles mostly graze on aquatic plants.
Known predators: great blue heron, great egret, belted kingfisher, turtles, water snakes, raccoon
Humans hunt bullfrogs for frog legs, but they have a limited hunting season in most states. Bullfrogs are also eaten by a wide variety of other animals, depending on the region. These include herons, such as great blue herons and great egrets, turtles, water snakes, raccoons, and belted kingfishers. Most fish are averse to eating bullfrog tadpoles because of their undesirable taste.
Economic Importance for Humans: Negative
Introduced bullfrogs may be driving native frogs to extinction in some areas. Colorado, among many other places, is experiencing problems due to the introduced bullfrog population. Bullfrogs may have been introduced accidentally to trout streams and lakes during the Colorado Divisions of Wildlife fish stocking operations. Bullfrogs occasionally invade fish hatchery ponds and their larvae are caught along with the fishes that are routinely stocked in ponds.
Economic Importance for Humans: Positive
North American bullfrogs help to control insect pests. They are important for medical research because their skeletal, muscle, digestive, and nervous systems are similar to those of other animals. They are often hunted for meat (frog legs).
Conservation Status
Bullfrogs do well with changes in the environment that have occured due to human modification, and are becoming increasingly common in areas modified by humans. Bullfrogs have a much higher critical thermal maximum than most other frogs, meaning that they are able to thrive in higher water temperatures. Bullfrogs have a longer breeding season and a higher rate of pre-metamorphic survivorship, which also allows them to be more successful than other frogs. In some areas, such as California, bullfrogs are driving other frog populations to extinction. One possible reason to explain why bullfrogs in California might have an advantage over other species native to that state is that bullfrogs evolved with a diverse predatory fish fauna in eastern North America. In California there have been attempts to control bullfrog populations by introducing new fish species that are their predators. Bullfrogs have evolved mechanisms to avoid predation by fish, such as less palatable eggs and tadpoles, and tadpoles that are not active much of the time, which reduces their exposure to predators. Native frog species of California are also suffering a decline because bullfrogs are efficient predators of frogs and tadpoles.
***
USD 16.00 Don\'t want to wait... Direct Buy Place offer Buy Now Item SpecificsCountry of Manufacture China
Payment: By Paypal
Free shipping cost.
We send the goods to USA buyers by E-express, a kind of postal express service set up by with USPS and Hong Kong Post. It usually takes about 6 to 10 working days(depends on proximity to USPS international hubs) for delivery in USA.
We send the goods to other countries by registered airmail through Hong Kong Post. It usually takes about 12 to 18 working days for delivery, and it may take a bit longer to Central and South America.
Full refund for returns in 30 days.
We will answer buyer messages in 24 hours.
Free shipping worldwide.
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