SLIDE 8 25/02/2011 8
TYPE OF EXPLANATION QUESTION ANSWER PROXIMATE CAUSE
- 1a. Causation (physiological
mechanisms) Sensory cells detect a companion, and CNS sends impulses to motor neurons that activate tail muscles.
mechanisms) The dog recognizes companion and decides to wag its tail.
Tail-wagging is genetically programmed into the dog, but he learns which individuals are his companions. ULTIMATE CAUSE
Tail wagging signals the friendly intentions to members of its social group, thereby maintaining the group and fostering the survival and reproduction.
In the past, tail wagging
- ccurred sporadically when
dogs interacted physically. Over time, tail wagging became modified into a
Marian Stamp Dawkins Desmond Morris Iain Douglas Hamilton Aubrey Manning
Ethology-Karl von Frisch
bees
- http://www.youtube.com/watch?v=bFDGPgXtK-U
(1886-1982)