CHAPTER 6 Flashcards
Deterrents
Weapons like horns, spikes (even large size) that defend prey when attacked. They also discourage predators from choosing to attach in the first place.
Cursorial limbs
limbs used for running
Cryptic adaptions
Cryptic adaptions allow potential prey to go a step further and avoid even being detected by predators.
Crypsis
The ability of an animal to avoid detection
What do cryptic adaptions include?
Includes camouflage colour patterns, hiding behaviours, and odour masking chemicals, and even bright colours t label themselves as toxic.
What is crypsis more common in and why?
It is more common in smaller animals because they can hide a lot easier the larger animals can.
Finite element analysis
A technique that is used to help evaluate hypotheses about the functions of dinosaur adaptions.
How does finite element analysis work?
Finite element analyses are computer simulations that apply set material properties to a digital object that report data on how stresses are dispersed through the object, when force is applied a particular way.
How can we determine how a dinosaur could see or hear?
By studying the Brain case, different sizes of different regions relate directly to the strength of specific scenes.
How is eye size estimated
By studying the size of the orbits.
How can hearing be estimated
By studying the inner ear cavity of the skull.
Why are the eyes of predators ad prey different
cuz prey need a wider field of view to avoid getting snuck up on, and so have eyes on the sides of their heads. predators have eyes near one another because it grants the predator spectroscopic vision.
Spectroscopic vision
Allows an animal to see the same object with both eyes.
What does spectroscopic Vision allow?
Allows them to see it from two different angles, which improves depth perception.
Social predators
Work cooperatively in order to acquire prey that would be too difficult to kill on their own.
