A new explanation for one of nature's most mysterious processes, the transformation of caterpillars into moths or butterflies, might best be described as breathless.
(Phys.org) -- When the threat of predators lurks, prey often eat less to avoid being out in the open and vulnerable to attack.
Moths need just the essence of a flower's scent to identify it, according to new research from The University of Arizona in Tucson.
Following herbivory, plants produce jasmonic acid, a hormone which activates several plant defense reactions. Scientists found that leafhoppers can evaluate whether tobacco plants are ready for defense when attacked. If jasmonate-signaling ...