Quadrupedal launch in pterosaurs

Microsaurs, from Gaining Ground by J. Clack

Cover image from Gaining Ground by J. Clack

Ichthyostega, an early tetrapod

Millipede locomotion

Crocodile hindlimb musculature

Fish eyes

Os coxa

Inhibition of TNF-Alpha

Anatomy of brain and basicranium

Anatomy of neck

Prostatectomy

Aortic aneurysm repair

Thyroidectomy