Frogs are valued as food by humans and also have many cultural roles in literature, symbolism and religion.Frog populations have declined significantly since the 1950s. Can you honestly tell me that you don't have a little bit of a crush on Adam? While Adam, who's dating a Sports Illustrated swimsuit model, may not want to lock lips with the country superstar, he has become a fan of Blake's personality and his music. Inside the mag, Adam and Blake talk more about their , along with their candid thoughts on fellow ' Voice' coach Christina Aguilera and more. "The ' Voice' coaches' People magazine cover story hits shelves this Friday./ The XX / Red Hot Chili Peppers / Mondo Cozmo / U2 / Tank and the Bangas / COIN / Portugal.the man / Cage The Elephant Drake / Rihanna / Usher / Justin Bieber / Cee Lo Green / Katy Perry / Muse / Bob Dylan / Eminem / Arcade Fire / The Avett Brothers / Lady Gaga / John Mayer / B.o.
Frogs' skins vary in colour from well-camouflaged dappled brown, grey and green to vivid patterns of bright red or yellow and black to advertise toxicity and warn off predators. The eggs hatch into aquatic larvae called tadpoles that have tails and internal gills.
Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforests.
There are approximately 4,800 recorded species, accounting for over 85% of extant amphibian species.
A few species deposit eggs on land or bypass the tadpole stage.
Adult frogs generally have a carnivorous diet consisting of small invertebrates, but omnivorous species exist and a few feed on fruit.