Science ❯ Biology ❯ Anatomy

Skeletal System

Bone Structure Fossil Anatomy Jaw Structure Leg Bones Ilium Pelvis Rib Cage Femoral Tubercle Osteoderms Thigh Bone Sesamoid Bones

Mummified Permian Reptile Reveals Oldest Rib-Powered Breathing System

Noninvasive scans uncovered soft tissues that push the fossil protein record back nearly 100 million years.

NYU-Led Reanalysis Points to Bipedalism in 7-Million-Year-Old Sahelanthropus

Study Pinpoints Two Embryonic Shifts That Shaped the Human Pelvis for Bipedalism