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A transitional form between fish and tetrapods, or four-limbed vertebrates.
The California kingsnake is one of the most popular species of pet reptiles. It was named after...
Moles are small subterranean mammals with modified, spade-like forelegs.
Blood vessels in fishes' gills absorb oxygen and release carbon dioxide.
Honeybees produce a sweet and nutritious substance, honey.
Curious little animal living in underground burrows in the African savannahs.
Large, extinct species of cats named after the shape of their large canine teeth.
While the density of spider silk is less than that of nylon filaments, its tensile...