Fledgling birds change rules for caterpillar color
During seasonal flush of naïve predators, larvae lose advantage of cautionary marks
![caterpillar](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/09/sm_Figure2Mappes_free.jpg?fit=860%2C460&ssl=1)
IN BAD TASTE A caterpillar called a lettuce shark sports bright coloring that warns predators of toxins or a bad taste. But the colors can be a liability for the caterpillar when young birds are learning what to eat, a study suggests.
Kimmo Silvonen