BIOL 1902 Lecture Notes - Lecture 10: Abies Balsamea, Sodium Chloride, Depth Perception
16 Oct 2017
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Lecture 10: moose go through a seasonal shift in diet. This is done by moving their retinas with muscles. : crab spiders are also visual hunters - sit on owers and grab whatever comes in and gives it a lethal bite. Golden rod spiders can change their colours to match owers (white to yellow) Large pinnae: sound, foxes, wolves (large ears, actual face of an owl is used for hearing. Nd (scent trails are easier to track at dusk: snakes have a fork tongue for directional analysis (if one side gets more particles that means the prey is on that side). Organ to analyze scents: sense of touch (tactile sense, raccoons have sensory cells on palms. Monday, october 16, 2017: paws can be sensitive but whiskers can as well. If whiskers are touching things it gives them a picture of what it is (tactile sense). Vibrissae (specialized hairs: instead of specialized whiskers, birds have similar feathers called rictal.
