A vital pathway for breathing and nourishment is also an object of desire—and one of the body’s most vulnerable parts.

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, giraffes didn’t have long necks. They wanted to eat the ...

Like giraffes, dinosaurs used their long necks to feed on plant life high in the trees and support their herbivorous lifestyles. The first sauropods came into existence during the early Jurassic ...

SAM: Ooh! Those leaves look so yummy! Ooh… I wish I had a longer neck so I could reach them! GRANDDAD: Long, long ago, that's exactly what the giraffe said. SAM: Did they? GRANDDAD: Oh ...

But something happened over the past millennia that drove giraffes to evolve the longest necks of any living animal. What ...