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These fish hide fluorescent switchblades in their faces

发布时间:2017-04-05 06:01:17来源:未知点击:

© American Society of Ichthyologists and Herpetologists / University of Kansas By Sam Wong A group of fish called stonefish have weaponised a bone in their faces so they can wield it like a switchblade. In these fish, the lachrymal bone, under the eye, is spiny and can rotate 90 degrees so that it sticks out from the face. This unusual feature, named the lachrymal sabre, has been found in males and females in all 63 stonefish species looked at so far,