Mammals

Created by: TaraCBeckworth
Created on: 22-08-18 16:13

Mammal characteristics

Fur, usually bear live young, sweat glands, different kinds of teeth, mostly pinna (bones in ear), endothermic, 4 chambered heart, diaphragm ventilates floppy lungs, extensive sensory palate, folded cerebral cortex (learning)

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Describe mammals extensive sensory palate

Many mammals have sensory abilities that exceed humans, humans have large library of smells, dogs have a larger one, inner ear (mammals detect and distinguish between many sounds), learning

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Prototheria

(Sub-class), incomplete mammals, sprawling legs, no pinna, simple inner ear, adults toothless, lay eggs, lack *******, secrete milk out onto fur, have electroreceptors (Platypus & 4 echidnas)

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Theria

Marsupials and eutheria, placental mammals

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Marsupials

Females (and sometimes males) have ventral pouch (marsupium) to carry and feed young, gestation short then early stages of development in marsupium

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Eutheria

Young nourished by placenta and carried in womb until fully developed, versed in size form and ecology

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Chiroptera

Bats, "hand wings", powered flight, him limb modified for prolonged hanging and squeezing into crevices, knee faced backwards, 2 groups (Megachiroptera and Microchiroptera)

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Megachiroptera

Fruit bats, lying foxes, old world tropics or sub-tropics, 1 family, fox-like faces, wrap wings around self when roosting

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Microchiroptera

Mostly insect eating, almost everywhere, can hibernate

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Describe echolocation

Biosonar, ultrasonic, distance large, brain regions highly specified navigation, detecting prey

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Describe features of primates

Grasping feet and hands, opposable big digits, nails, finger and toe prints, forward-facing eyes, distance vision, tendency to reduction of olfactory region of brain and expansion of cerebral cortex, increased social behaviour

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Other cards in this set

Card 2

Front

Describe mammals extensive sensory palate

Back

Many mammals have sensory abilities that exceed humans, humans have large library of smells, dogs have a larger one, inner ear (mammals detect and distinguish between many sounds), learning

Card 3

Front

Prototheria

Back

Card 4

Front

Theria

Back

Card 5

Front

Marsupials

Back

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Mammals