X-ray of a frog
Frog. X-ray of a frog (family Ranidae). The frog's semi-circular jawbone gives it a wide gape for capturing prey with its tongue. The strong limb bones are adapted for powerful jumping and swimming. The forelimbs are attached to a fused shoulder girdle to take the impact of landing after a jump. The three pelvic bones are also fused, providing a fixed pivot from which the long hindlegs can kick. The rear toes are elongated and webbed to assist with swimming.
© D. ROBERTS/SCIENCE PHOTO LIBRARY
Marsh frog (Pelophylax ridibundus). This frog can appear in a variety of colours. It feeds on dragonflies, insects, spiders, earthworms and slugs. Larger frogs are also known to eat mice, salamanders and fish. Photographed in Israel in May.
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973900730, Amphibians, Amphibious, Animals, Aquatic, Biological, Differential Focus, Fauna, Frogs, Israeli, Pool, Wild Animal, Wildlife, Zoological
Silicone implants for frogs
A golden mantella frog at Chester Zoo, Chester, is implanted with a fluorescent silicone gel on its leg, which allows keepers to identify individuals in their group of 80 frogs. Amphibian experts will monitor the implants and if deemed a success the process will be used to track the species in their native home of Madagascar.
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