- Not Exactly Rocket Science
Pocket Science – chameleons hunt with cold-proof tongues and zebrafish babies go blind at night
Chameleons are some of the most versatile of lizards. They live in baking deserts and freezing mountaintops and part of their success hinges on a weapon that works just as well in the warmth as in the cold – its tongue. Relying on stored elastic power for its ballistic strike, the chameleon’s tongue is largely cold-proof. At temperatures that would flummox most reptile muscles, the tongue carries on snatching insects with great efficiency.
Chameleon tongues can reach twice the length of their body in less than a tenth of a second, latching onto prey with a sticky, grasping tip. Rather than pushing it forward with muscle power, like a spear-thrower, the chameleon behaves more like an archer. It ratchets the tongue