Why plants grow towards the light. 1  Botany: A Stem's 'Sense of Self' Contributes to Shape. 2  Scientists Discover C4 Photosynthesis Boosts Growth by Altering Size, Structure of Plant Leaves, Roots. 3  Cellulose Goes Off the Rails: Without Microtubule Guidance, Cellulose Causes Changes in Organ Patterns During Growth.
Tasting hairs on the legs of a roach can not only help it determine a food source, but help it avoid pesticides as well. Glycocides -- poison baits mixed with glucose -- were traditionally used to dose the sweet-loving cockroach with lethal toxins.
Groups of kangaroos are called 'mobs' When a kangaroo is moving slowly the tail is used as an extra leg and supports the kangaroo when it is standing on its hind legs. Most kangaroos can only move both back legs together and not one at a time. Kangaroos have good eyesight but only respond to moving objects.