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Flashcards in Senses, Communication 3 Deck (12)
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1

Why is group living advantageous?

Reduces risk of predation and enhances survival

2

What is the difference between dog and human vision?

Dogs=dichromatic- 2 cones
Humans=trichromatic-3 cones

3

What does dichromatic vision mean for determining colours?

Struggle to distinguish between red and green

4

What is the tapetum lucidum? And what does it do?

It is a reflective layer at the back of the eye that reflects light back onto receptors

Can see in low light

5

How many times worse is visual acuity in dogs compared to humans?

4 to 8 times worse

6

What sort of vision do birds have?

Tetrachromatic vision: can see UV

7

What needs to be taken into consideration when managing the welfare of an animal on the basis of sound?

Animals have better hearing than humans so may be able to hear things we can’t, therefore need to take sound into account when they become distracted/fearful

8

What does the vomeronasal organ do?

Detects pheromones
Flehman response in horses to determine a mare’s oestrus stage

9

What are the modes of communication in animals?

Scent
Pheromones
Body language
Vocalisations
Touch

10

What does the dog appeasing pheromone (DAP) do?

Helps the animal to feel calm and remove stress

11

How would you describe an animal’s territory?

An area/home range an animal defends by fighting, signals or demarcation that other individuals detect

12

What are the positives of play?

Benefit for adult life: enhances neural development, motor and social skills