A fingernail-size frog that can morph its skin texture from spiny to smooth in just minutes is the first shape-shifting amphibian ever found.
The procedure is the latest step in longer-term efforts to 'de-extinct' a creature that has not roamed Earth in thousands of years.
The argument over the existence of Yeti is heating up, but it has more to do with bears than the legendary Abominable Snowman.
Two sub-tropical bats found in caves in Israel challenge key assumptions about hibernation.
The tricky procedure buys a fish more time.
Skulls of at least some baleen whales have acoustic properties that capture the energy of low frequencies and direct it to their ear bones.
Understanding how the brain causes thirst could help scientists learn what goes awry in disorders that make people drink too much or too little fluid.
The footage is the first-ever to document dwarfism in an Asian elephant.
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