BIOL 1902 Lecture Notes - Lecture 1: Bumblebee, Eastern Tent Caterpillar, Eastern Newt
28 Feb 2017
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Sunday november 6 : 2:00 to 3:30pm lectures 1-12. Natural history is the interaction between plants and animals. Natural history is the observation of living plants and animals. Appearances can be a way of staying alive. Bill in the air so its body cannot be seem. Many songbirds have eyelines and eyestripes for concealment. As they(cid:859)re eati(cid:374)g they are poopi(cid:374)g e(cid:448)eryti(cid:373)e. Whirligigs are bioloured (black above white below ) One group of aquatic insects has a dark underside and a white upper surface. Bird goes near it wings opens up. Need variation in offspring and differential survival. They (cid:272)a(cid:374) defle(cid:272)t a predator(cid:859)s atta(cid:272)k to a (cid:374)o(cid:374) (cid:448)ital (cid:271)ody part. Can look like antennae on its heads. Soon as tail is touch the tail comes off. Mammals can also use stiff hair for defence. Other animals attain chemicals by eating plants that contain them. Chemical defences can be released from different parts of the body.
