BIOL 1902 Lecture Notes - Lecture 10: Forked Tongue, Whiskers, Boreal Owl

• School: Carleton University
• Department: Biology
• Course: BIOL 1902
• Professor: Michael Runtz

Document Summary

Getting meals: eat while live from inside or outside, kill it and eat it or eat when its already dead (scavengers) Moose: balsam fir is very low in sodium. Eat aquatic plants which are high in sodium. Watersheild = 500 x more sodium that land plants. Advantages: more return for effort & easier to digest --- disadvantages: hard to find, protected, fight back. Parasite: animals eat from the inside when the animal is alive. Parasitoid: animals eats from inside and kills host. Ex. wasp laid eggs inside caterpillar kills the animal that it is: locate prey, eyesight- Hawks: large eyes for more light collection (cones for color perception and sharp vision). Retinal forveae within retinal pits (temporal (front eyes) - pursuit and central(side eye) - searching). Owl: night hunting large eyes = rods light sensitives (frontal placement) owls turn their heads 270d. Tiger beetles: have large compound eyes = multiple units (still only see 1 image)