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From 1953 to 1957, herpetologist Charles Mitchill Bogert, chair of the American Museum of Natural History's Department of Amphibians and Reptiles, collected field recordings of frog calls in "swamps, lakes, woods, creeks, and roadside ditches" [1] of the United States and Mexico. Bogert compiled the recordings and provided narration for the album.
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Malpighi's frog dissection in 1661, proved to be a suitable size that could be magnified to display the capillary network not seen in the larger animals. [16] In discovering and observing the capillaries in the frog's lungs, Malpighi studied the movement of the blood in a contained system. [15]
Rana (derived from Latin rana, meaning 'frog') is a genus of frogs commonly known as the Holarctic true frogs, pond frogs or brown frogs.Members of this genus are found through much of Eurasia and western North America.
The African clawed frog or platanna, Xenopus laevis, was first widely used in laboratories in pregnancy assays in the first half of the 20th century. When human chorionic gonadotropin , a hormone found in substantial quantities in the urine of pregnant women, is injected into a female X. laevis , it induces them to lay eggs .
Dissection of a frog. Pain is an aversive sensation and feeling associated with actual, or potential, tissue damage. [1] It is widely accepted by a broad spectrum of scientists and philosophers that non-human animals can perceive pain, including pain in amphibians.
A frog which demonstrates vocalizations in male-male competition is the Lithobates clamitans aka the Green Frog. Typically, they have four types of calls each warning a different level of urgency and each being distinct. The first two calls are types of advertisement calls to establish dominance among the challengers.
Leopard frog is a generic name used to refer to various species in the true frog genus Lithobates. They all have similar coloration: brown or green with spots that form a leopard pattern . They are distinguished by their distribution and behavioral, morphological , and genetic differences.
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