While a recent theory suggests regulating body temperature may have played a role, the main giraffe neck-elongation contenders ... As a result, the team believes natural selection pressure on ...

Animation describing the evolution of the giraffe. Sam, a young tortoise, wishes he had a longer neck to reach the nicest leaves. Grandad Charlie tells Sam a story about giraffes. Long ago ...

Description: The tallest land mammal, with a neck as long as 6 feet, the giraffe is also well known for the unique brown and white pattern on its coat (“pelage”) and its lengthy eyelashes and legs.

Natural selection is the process that ... and back up the neck again before reaching its destination. That’s because giraffes ...