It sounds almost unbelievable, but it’s true: whales, the giants of the sea, carry inside them a tiny, hidden clue to their incredible evolutionary journey—small vestigial leg bones.

Whale hip bones, left over from long-ago days when these cetaceans walked on land, are not useless, vestigial structures as long believed. They're for sex. Researchers have now found that the size ...

Whale sex revealed: 'Useless' hips bones are crucial to reproduction - and size really matters, study finds. Whales and dolphins have pelvic bones, which are evolutionary remnants from when their ...

NEW YORK: Turning a long accepted evolutionary assumption on its head, scientists have discovered that whale pelvic (hip) bones play a crucial role in their mat ...

When whales and dolphins lost their legs, they didn't lose their pelvic bones; they kept them for better sex, researchers say. The pelvic bones give them control of the parts that matter most.

Pelvis bone is vital to whale sex “Everyone’s always assumed that if you gave whales and dolphins a few more million years of evolution, the pelvic bones would disappear," explained Matthew Dean.

In dolphins and whales, the pelvis is widely considered to be a good-for-nothing remnant of legged days past. But that pelvic bone didn't become useless when the animals switched from walking to ...

In dolphins and whales, the pelvis is widely considered to be a good-for-nothing remnant of legged days past. But that pelvic bone didn't become useless when the animals switched from walking to ...

Whale hip bones, left over from long-ago days when these cetaceans walked on land, are not useless, vestigial structures as long believed. They're for sex.