Researchers determine that a primate’s tooth root, and not just its crown, can yield reliable information about body size, but the relationship between root surface area and diet isn’t as clear.

Geckos injected with neural stem cells modified to block cartilage growth developed the skeletal and nervous components normally lacking from regrown tails.

A gain-of-function mutation in a single gene reveals ancient limb-forming capacity that has been preserved for hundreds of millions of years.

Independently produced knockout mouse strains fail to find evidence of the bone protein’s endocrine functions, and divide researchers’ opinions.

The crania of individuals who lived in the Yucatán Peninsula during the late Pleistocene show a high degree of anatomical diversity among them, and their skull shapes differ from that of other North American populations of the time.

Microscopic plant remnants found near the bones indicate that the ancient humans practiced burying rituals, but the archaeological field is not in full agreement.

This marine animal looks like a sea star, but don’t be fooled.

This ancient bird has a modern tail bone.

Human remains around Roopkund Lake in India bear South Asian, East Asian, and Mediterranean ancestry.

Microbial species that are commonly associated with oral diseases in modern humans are unreliable proxies for determining tooth health status in ancient samples, a new study finds.

The skull bones of a catfish move in coordination when capturing prey.

The world’s largest T. rex found to date likely weighed nearly 20,000 pounds during its life.

The pelvic bones of women have been shaped more by random evolution than by natural selection, a new study finds.

Researchers recovered the cells that give rise to bone and cartilage from fetal and adult bone marrow and also derived them from induced pluripotent stem cells.

The Chilean government contends that the remains of a mummified fetus, recently sequenced by US researchers, were exhumed illegally.

Scientists are taking a close look at fish skeletons for inspiration to solve engineering problems. 

Plague-causing bacteria may have been around as early as 5,000 years ago, though a genomic analysis suggests that ancient strains were less contagious.

Comb jellies, soft-bodied marine creatures that swim by beating rows of cilia, may once have had a hard skeleton.