Predatory Behaviours

How has the Black headed grosbeak bird adapted to hunt Monarch Butterfly- Exam Study

milkweed resistance

how have the Birds adapted to resisting the milkweed poison -Exam Study

similar mutations to the butterfly

e.g. three 2 for preventing the sodium pump attack then 1 to prevent seizures which results from the other two mutations

however in the bird these mutations are only present in the heart (which is the most effected organ by the poison)

What does the Champanzee hunting success depend on - Exam Study

the party size ( more the better)

what system is the SC apart of -Exam Study

Sensory

what did the neurones of the superior colliculus do in mice -Exam Study

send projections to many motor-related regions

what are the function of the motor-related regions that the SC neurones project to - Exam Study

trigger head movements (to orient towards prey)

initiate locomotion (to approach prey)

promote prey pursuit

trigger jaw and paw attacks

what is the purpose of the location of owl ears - Exam Study

azimuth (position in horizontal plane)

elevation (Vertical plane)

(Need both for prey capture )

what System do owl ears use to determine prey elevation -Exam Study

interaural level difference

what is interaural level difference -Exam Study

the difference in sound intensity between the left and right ear

what owl ear is higher - Exam Study

right

what cues does the owl ears detect -Exam Study

the intensity for its elevation

and the timing for the horizontal

what is the appetite centre

Lateral hypothalamus

what does the lateral hypothalamus do

stimulates predatory attack

suppresses defensive behaviour

what else is involved in appetite drive

Zona Incerta

aside from venom what our adaptions does the Blue Ringed Octopus have -Exam Study

extremely strong parrot like beak that could cut through human muscle to consume prey

how does the blue ringed octopus hunts -Exam Study

subdues prey with paraslysing fast-acting venom injected into the prey or water around it

what is the venom used by Blue-ringed Octopus

tetrodotoxin (Produced by symbiotic bacteria in the salivary glands

what is the disadvantages of cat eyes -Exam Study

can’t focus on anything 30cm away

how do uses whiskers to hunt -Exam Study

once prey are out of focus i.e. closer than 30cms away

whiskers are moved forward to detect location of prey

where are whiskers on a cat

cheeks, toes and above eyes

how are whiskers sensitive to touch -Exam Study

they sit in fluid filled-sacs rich with a nerve supply so anything detection is instant

what is the purpose of a cats Whiskers Exam Study

used to ensure killing bites are correctly oriented

how does team work effect cheetah hunting -Exam Study

drastically increase number of prey able to obtain more larger prey can be obtained