Senses, Communication 3 Flashcards
Why is group living advantageous?
Reduces risk of predation and enhances survival
What is the difference between dog and human vision?
Dogs=dichromatic- 2 cones
Humans=trichromatic-3 cones
What does dichromatic vision mean for determining colours?
Struggle to distinguish between red and green
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
How many times worse is visual acuity in dogs compared to humans?
4 to 8 times worse
What sort of vision do birds have?
Tetrachromatic vision: can see UV
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
What does the vomeronasal organ do?
Detects pheromones
Flehman response in horses to determine a mare’s oestrus stage
What are the modes of communication in animals?
Scent Pheromones Body language Vocalisations Touch
What does the dog appeasing pheromone (DAP) do?
Helps the animal to feel calm and remove stress
How would you describe an animal’s territory?
An area/home range an animal defends by fighting, signals or demarcation that other individuals detect
What are the positives of play?
Benefit for adult life: enhances neural development, motor and social skills
