Difference between revisions of "Physical World/Amphibians"
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|'''Midwife toad''' | |'''Midwife toad''' | ||
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The males carry a string of fertilised eggs on their back, hence the name "midwife" | The males carry a string of fertilised eggs on their back, hence the name "midwife" | ||
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The back of the midwife toad is covered with small warts. These warts give off a strong smelling poison when the toad is attacked | The back of the midwife toad is covered with small warts. These warts give off a strong smelling poison when the toad is attacked | ||
|- | |- | ||
| − | | | + | |[[File:Natterjack toad.jpg|none|thumb]] |
|'''Natterjack toad''' | |'''Natterjack toad''' | ||
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''Bufo calamita'' | ''Bufo calamita'' | ||
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Distinguished from common toads by a yellow line down the middle of the back, and parallel paratoid glands | Distinguished from common toads by a yellow line down the middle of the back, and parallel paratoid glands | ||
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Natterjacks have a very loud and distinctive mating call | Natterjacks have a very loud and distinctive mating call | ||
|- | |- | ||
| − | | | + | |[[File:Cane toad.jpg|none|thumb]] |
|'''Cane toad''' | |'''Cane toad''' | ||
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''Rhinella marina'' | ''Rhinella marina'' | ||
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Introduced to many regions of the Pacific and the Caribbean islands as a method of agricultural pest control. The species derives its common name from its use against the cane beetle. The cane toad is now considered a pest and an invasive species | Introduced to many regions of the Pacific and the Caribbean islands as a method of agricultural pest control. The species derives its common name from its use against the cane beetle. The cane toad is now considered a pest and an invasive species | ||
|- | |- | ||
| − | | | + | |[[File:Goliath frog.jpg|none|thumb]] |
|'''Goliath frog''' | |'''Goliath frog''' | ||
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''Conraua goliath'' | ''Conraua goliath'' | ||
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Largest living frog on Earth. Specimens can grow up to 32 cm (12.6 in) in length. Found in Cameroon and Equatorial Guinea | Largest living frog on Earth. Specimens can grow up to 32 cm (12.6 in) in length. Found in Cameroon and Equatorial Guinea | ||
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The one in the picture has stolen a watch! | The one in the picture has stolen a watch! | ||
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| − | | | + | |[[File:American bullfrog.jpg|none|thumb]] |
|'''American bullfrog''' | |'''American bullfrog''' | ||
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''Rana catesbeiana'' | ''Rana catesbeiana'' | ||
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Has an olive green back and sides. Males have yellow throats | Has an olive green back and sides. Males have yellow throats | ||
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Native to southern and eastern parts of the United States and Canada | Native to southern and eastern parts of the United States and Canada | ||
|- | |- | ||
| − | | | + | |[[File:Paradoxical frog.jpg|none|thumb]] |
|'''Paradoxical frog''' | |'''Paradoxical frog''' | ||
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''Pseudis paradoxa'' | ''Pseudis paradoxa'' | ||
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Its name refers to the very large – up to 25 cm (10 in) long – tadpole, which in turn becomes an ordinary-sized frog, only about a quarter of its former length | Its name refers to the very large – up to 25 cm (10 in) long – tadpole, which in turn becomes an ordinary-sized frog, only about a quarter of its former length | ||
|- | |- | ||
| − | | | + | |[[File:Xenopus.jpg|none|thumb]] |
|'''Xenopus''' | |'''Xenopus''' | ||
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genus ''Xenopus'' | genus ''Xenopus'' | ||
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Commonly known as the clawed frog | Commonly known as the clawed frog | ||
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Studied as model organisms for developmental biology, cell biology, toxicology, neuroscience and for modelling human disease and birth defects | Studied as model organisms for developmental biology, cell biology, toxicology, neuroscience and for modelling human disease and birth defects | ||
|- | |- | ||
| − | | | + | |[[File:Chinese giant salamander.jpg|none|thumb]] |
|'''Chinese giant salamander''' | |'''Chinese giant salamander''' | ||
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''Andrias davidianus'' | ''Andrias davidianus'' | ||
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The largest salamander and largest amphibian in the world, reaching a length of 180 cm (5.9 ft) | The largest salamander and largest amphibian in the world, reaching a length of 180 cm (5.9 ft) | ||
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A living fossil which is classified as critically endangered | A living fossil which is classified as critically endangered | ||
|- | |- | ||
| − | | | + | |[[File:Hellbender.jpg|none|thumb]] |
|'''Hellbender''' | |'''Hellbender''' | ||
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''Cryptobranchus alleganiensis'' | ''Cryptobranchus alleganiensis'' | ||
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A species of giant salamander endemic to eastern North America | A species of giant salamander endemic to eastern North America | ||
| − | It is blotchy brown or red-brown in | + | It is blotchy brown or red-brown in colour, with a paler underbelly |
|- | |- | ||
| − | | | + | |[[File:Axolotl.jpg|none|thumb]] |
|'''Axolotl''' | |'''Axolotl''' | ||
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''Ambystoma mexicanum'' | ''Ambystoma mexicanum'' | ||
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Also known as a Mexican salamander and colloquially known as a "walking fish" | Also known as a Mexican salamander and colloquially known as a "walking fish" | ||
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Axolotls reach adulthood without undergoing metamorphosis. Instead of developing lungs and taking to land, the adults remain aquatic and gilled | Axolotls reach adulthood without undergoing metamorphosis. Instead of developing lungs and taking to land, the adults remain aquatic and gilled | ||
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| + | |[[File:Great crested newt.jpg|none|thumb]] | ||
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'''Great crested newt''' | '''Great crested newt''' | ||
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''Triturus cristatus'' | ''Triturus cristatus'' | ||
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Also known as northern crested newt | Also known as northern crested newt | ||
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Males can be distinguished from females by the presence of a jagged crest during the breeding season | Males can be distinguished from females by the presence of a jagged crest during the breeding season | ||
|} | |} | ||
Latest revision as of 14:47, 1 July 2021
| Midwife toad
genus Alytes The males carry a string of fertilised eggs on their back, hence the name "midwife" The back of the midwife toad is covered with small warts. These warts give off a strong smelling poison when the toad is attacked | |
| Natterjack toad
Bufo calamita
Natterjacks have a very loud and distinctive mating call | |
| Cane toad
Rhinella marina
| |
| Goliath frog
Conraua goliath
The one in the picture has stolen a watch! | |
| American bullfrog
Rana catesbeiana
Native to southern and eastern parts of the United States and Canada | |
| Paradoxical frog
Pseudis paradoxa
| |
| Xenopus
genus Xenopus
Studied as model organisms for developmental biology, cell biology, toxicology, neuroscience and for modelling human disease and birth defects | |
| Chinese giant salamander
Andrias davidianus
A living fossil which is classified as critically endangered | |
| Hellbender
Cryptobranchus alleganiensis
| |
| Axolotl
Ambystoma mexicanum
Axolotls reach adulthood without undergoing metamorphosis. Instead of developing lungs and taking to land, the adults remain aquatic and gilled
| |
|
Great crested newt
Triturus cristatus
Males can be distinguished from females by the presence of a jagged crest during the breeding season |
