Midterm 1 Flashcards
What are geladas known for?
They are the most abundant terrestrial primate
Why are geladas terrestrial?
They feed on grass which is abundant on the ground
Why are geladas social among humans?
Again due to their desire to feed on grass and the abundance of grass ensures that they do not compete for food
Why are gelada hands the way they are?
They have opposable thumbs, that are long, and shorter index fingers which allows them to pick at grass
Where do gelada sleep?
To hide from predators and to sleep they climb cliffs but are unable to climb trees becuase their hands are too small
Where are gelada found?
Ethiopia
What is the female system for geladas?
Female philopatry system
What is the female philopatry system?
Where you will find a close group of females huddled together not unrelated females
What is the one-male unit?
The dominant male that is able to compete amongst the men will be in a group of females
What other name do geladas go by?
Bleeding heart baboons
What is the relavence of the red chest patch?
Males that dominate have a darker patch
What other attributes do males have?
Males that dominate have a larger fur coat, are bigger, and have sharper canines
How do female geladas indicate that they are prepared for mating?
Females have beads on the sides of their chests that become fluid filled to indicate sexual maturity
What are primates to humans?
The closest living relative
What is the idea of inheritance?
Humans inherited morphological and behavioural traits from monkeys
What is a phylogenetic tree?
A series of speciation events that depict a relationship
What are the 5 typeos of primates?
- Lemurs and Lorieses
- Tarsiers
- New world monkeys
- Old world monkeys
- Apes
What is a strepsirrhines?
A curved and dry nosed organism
What is a haplorhine?
A simple and wet nosed organism
What are the 6 attributes of a primate?
- Emphasizes vision more than smell
- Emphasizes manual dexterity
- Generalized dentition
- Big brain to body ratio
- Long life span and slow growth
- Social relationships
What is the old theory?
That the great apes have a closer related ancestor than humans do to any of them
What was the new view?
That humans, and apes are closely related to each other than monkeys to either
What is homoplasy?
When an attribute appeared after the last common ancestor such as humans and birds bipedalism
(you need to compare species)
What is homology?
When an attribute is common or shared between the ancestor and the new species
such as having 5 digits
What is sexual dimorphism?
Distinct morphological traits between males and females of a species
