02_instinctvlearning - Levels of Analysis Quiz(see course web site 1 Hummingbirds possess a red photoreceptor that allows them to discriminate red

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
8/27/2009 1 1. Hummingbirds possess a red photoreceptor that allows them to discriminate red flowers from orange ones. 2. When reared under crowded conditions, lemmings are more likely to engage in dispersal behavior than when reared alone. 3. Male deer with large antlers tend to win more contests, secure more matings, and thus sire more offspring than males with small antlers. Levels of Analysis Quiz (see course web site) 4. Butterflies learn to avoid a spot where they have been caught in a net and released. 5. Cave-dwelling fish and crayfish are often blind, suggesting that loss of eye function in cave animals has arisen independently a number of times. 6. The flash of light that ‘flashlight fish’ generate involves production by symbiotic bacteria of an enzyme known as luciferase. Shakespeare on Instincts Learning and Instinct Historical Background “I’ll never be such a gosling to obey instinct, but stand as if a man were author of himself and knew no other kin.” -- Corolianus , ca. 1608 Descartes and Free Will Descarte in 1600’s: animal’s behavior governed solely by the laws of physics physics, whereas human beings had a soul, which was thought to reside in the pineal gland ... Humans, unlike animals, had free will. Cartesians created a dichotomy* : humans as reasoning beings vs. animals as automata animals as * dichotomy = two-part classification The learning The learning-instinct dichotomy instinct dichotomy Once known that animals could learn, new dichotomy arose: learning vs. instinct Lamarck on Instincts “By instinct is meant the fixed td i di l d b i l i th i tendencies displayed by animals in their actions; and many people have held that these tendencies are the produce of a reasoned choice, and therefore the fruit of experience.”
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
8/27/2009 2 Evolution by Use and Disuse “…the continued use of any organ leads to its development, strengthens it, and even enlarges it, while permanent disuse of any organ is injurious to its development, causes it to deteriorate and ultimately disappear if the disuse continues for a long period through successive generations.” J-B. de Lamarck Philosophie Zoologique (1809) Will body-building cause one’s children to be more muscular from birth?
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/09/2009 for the course ECOL 487R taught by Professor Papaj during the Spring '09 term at University of Arizona- Tucson.

Page1 / 9

02_instinctvlearning - Levels of Analysis Quiz(see course web site 1 Hummingbirds possess a red photoreceptor that allows them to discriminate red

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online