Animal Science

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Slide 14

Coelacanth

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Ceelo…

Can’t.

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Paleocene and Eocene epoch 70 to 40 MILLION YEARS AGO

Dinosaurs are gone!! But, the small animals survived.

Mammals evolved, dispersed, and adapted to new environments. Why?

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Summary

What is the definition of Animal Science?

What are some fields within AnSci?

What was the first life on earth?

What is a vertebrate?

How did mammals survive when dinos didn’t?

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Why aren’t mammals giant like Dinosaurs?

Why no giant cows?

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Placental mammals

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Placental mammals

Most of the animals we will discuss are placental mammals and evolved during this period.

How many non-placental animals can you name?

Placental mammals have a placenta (fluid filled sack inside the uterus of the animal) through which the embryo and fetus are nourished while in utero.

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Placental mammals

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Placental mammals

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When did Animal Science Start?

With the beginning of the Domestication of animals.

Domestication = to tame for the use of humans. It takes thousands of years.

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Domestication

A dogs jawbone was found in a cave in Siberia that dates back about 33,000 years ago.

“Ancient dog skull unearthed in Siberia” (BBC News 2011)

(http://www.bbc.co.uk/news/science-environment-14390679)

What was the first domesticated animal?

The Dog/Wolf was the first domesticated companion animal.

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Domestication

Hunters and gathers: A nomadic lifestyle, no permanent settlements

Domestication allowed them to settle down-they didn’t have to go look for animals and plants.

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Domestication

Why was the wolf the first animal to be domesticated?