Avian reptiles and mammals

What is the evolutionary history for Aves

Dinosauria

What is the ancerstor in dinoauria for aves

Theropods, specifically archaeopteryx

Are aves diapsida or synapsida

Aves are diapsida

Describe aves feathers and endotherms

Endotherms (produce own body heat), feathers made of keratin

What are feathers in Aves used for

Coloration and Flight

Where do Aves live

All aves need a terrestrial home, some live on water such as mallards

Describe Aves bones

Aves bones are pneumatic

Descibe Aves bill and skeleton structure

Aves have a keratinized bill, an atals for their head (single attachment) fused vertebrae and a fused clavicles

How do Aves reproduce

Ovoparious, through a cloaca

How diverse are Aves

There are 10,000 species, may be upwards of 18,000, 35 orders in total

Describe Aves Behavior

Aves have displays such as songs, dances, food offering or nest sapce for mating

Describe the three styles of mating systems in Aves

Monogamy (one male to one female)

Polygyny (one male to multiple females)

Polyandry (multiple males to a single female)

What is Aves behavior for migration

Migration is a physiological response, Route based and loaction based

What is the ecosystem importance for Aves

Aves provide food web, seed dispersal, pollination, nutrient cycling

What is the human importance for Aves

Natural enjoyment, recreation, medicine, food source, Biomimicry, pets

Are mammals diapsida or synapsida

Mammals are synapsida which means they have one set of temporal fenestra

Describe Mammals Jaw and teeth

Single lower jaw, (heterodonts), Seconday palate which allows for breathing while chewing

Are mammals endotherms

Mammals are endotherms, they self regulate for heating up and cooling down

Describe mammals hair

The hair is made of keratin, evolved at 160 MYA and has many purposes, it does molt

What are mammary glands in mammals

Milk production for young, puts lots of strain on mother to make it

Where do mammals live

Mamalls are both aquatic and terrestrial

What is the mammalian lineage

Prototherian: Oviparous (eggs) and monotremata

Therian: Viviparous (develop in parents body), marsupials, Eutheria

Describe monotremata linegage

Oviparous, Cloaca, produce milk, 4 extant speciees

Describe marupials lineage

Vivipairt, primitave placenta, marsupial pouch, 330 extant

Describe eutheria lineage

Viviparity, complex placenta, 5,000 extant, (most modern mammals)

Describe mammalian classification

27 orders ~60 % belong to rodentia or chiroptera

What is the ecosytem importance of mammals

Food web, Seed dispersal, pollination, nutrient cycling, ecosystem engineer

What is the human importance of mammals

Natural enjoyment, recreation, food soruce, medicine, biomimicry and pets