Research overview: claw curvature and its relationship to climbing and prey capture

The degree of curvature in a claw correlates with how an animal uses it, and this overview reviews that relationship in cats. Strongly recurved claws favour gripping bark and branches and hooking into prey, while flatter claws suit traction on the ground. Across felids, claw shape varies with lifestyle, from arboreal hunters to open-country runners. Researchers quantify curvature from radii and chord measurements and test its association with substrate use, drawing on broader comparative work linking claw geometry to climbing across amniotes. Why it matters: claw curvature is a readable signature of ecology, letting researchers infer how living and even extinct cats moved and hunted, and it shows how a single morphological axis tracks the trade-off between gripping vertical surfaces and gripping the ground.