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12 Cards in this Set
- Front
- Back
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Traits Common in Mammals?
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- Mammillary glands – ability to nurse the young
- Hair - Generally larger brains - Four limbs - Give birth to live young |
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What is Adaptive Radiation?
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process which gives rise to multiple species that exploit different niches.
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Primates ?
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- Primates are an older order close to radiation from mammal groups.
-largest size range of any class. |
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Natural History of Primates?
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1. Came from a line of small insect eating animals.
2. Moved into the trees – new niche produced when flowering plants evolved |
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Features of Primates?
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- Frontated Eyes
- Post orbital bar - Reduced muzzle - Finger nails - Larger brain |
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Frontated Eyes?
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Binocular vision ->eyes moving to the front of the head...3d vision.
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Post orbital bar?
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enclosed eye sockets --> bone protection around the eye.
Protects the eye from popping out. |
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Tri-color vision ?
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ability to see red, yellow, blue all the colors – important so you can see your food better
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Reduced muzzle?
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reduced sense of smell...not needed in trees. Primates have very poor sense of smell.
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Grasping hands?
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opposable thumb --> ability to take your hand and touch all your fingers. Ability to grasp important because its easier to get food.
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Finger Nail?
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Not claws. Not attached to bone.
Distributing pressure ....allows greater surface area to hold things. |
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Large Brains?
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Much larger than most mammals. It is important because helps them building tools without brain we are weak.
- There are a suite of traits that primates have but there are no traits that are only found in primates. |
