BIOL 1902 Final: Natural History Final Review
Document Summary
Masquerade: animals use masquerade as a defence to stay alive. Back ground mimicry, dead leaf mimicry, live leaf mimicry, twig mimicry, bird dropping mimicry. Camouflage: bicolored animals, which offers background matching, 1 dimensional shape (counter-shading, self-shadow concealment). Plan b: bright colors to frighten, startle patterns, startle structures, and startle sound, eye spot on a body to make an animal look bigger. Color patters for discretion: can deflect a predator"s attack with non-vital body- parts. Physical defense can be soft structure, such as spider weds, soft hair, or modified hair (spikes). Chemicals such as poison, those animals are obvious to see, they do not camouflage but they advertise themselves. The odds of not being eaten are bigger if you look alike other species. Behavioral defenses: animals can play dead, safety in numbers, flocks of birds, group defense can be aggressive. Some animals have body guards (ants protect plants for sugar in exchange). Vigilance: animals will always be smelling, looking for danger.
