Evolution of Cows

Audio Transcript Auto-generated

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  Okay, This is cow evolution by Britney and medals.

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  The scientific name for cows is the boss Tourists.

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  Now these animals have common ancestors that they descended from

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  including Rx which were wild ox, that wrong in Europe.

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  In Asia they're the most recent ancestor of cows.

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  They were the first recorded animal to have gone extinct

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  in 16 27 and they're larger than modern cattle.

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  Next we have boss, which had hopes with an even

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  number of toes.

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  They were grazers, they had large teeth and they had

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  a life span of about 18 to 25 years.

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  Next we had the Unga Lotte, which were a transitional

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  species. They had moved the large horns and they were

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  grazers as well.

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  Next we have the Miocene antelopes which led to the

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  boat today.

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  Species? They were Martin.

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  They marked the appearance of over day and they may

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  be a sister ancestor.

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  Next are the boat today, which I found in all

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  parts of the globe.

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  Except for South America and Australia, they had cloven, they

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  were cloven hooved and they were ruminant mammals.

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  Finally, we have the serve a day which are part

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  of the dear family.

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  Their sister ancestor.

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  They're related by the Rto deck, Tila and they have

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  even tow hooks.

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  Next, we have our fossil evidence.

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  Uh, this picture shows a transitional fossil in the cow

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  species. The 1st 1 was probably in for rock, and

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  then the next one was an angle.

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  Lotte on the final one was the transition to the

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  modern cow.

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  Um, this timeline shows when our cows first became domesticated,

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  which was about 10,000 years ago, they were first domesticated

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  in India in the Middle East.

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  And this is when modern cows began to show their

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  changes. Adaptations of these animals where their primary food were,

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  Hey, silage and grass.

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  The species lived in grasslands.

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  Their predators were coyotes, Cougars, bobcats, lynx, dogs, wolves, vultures

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  and bears.

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  Usually they interact with the same species and grazing herds

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  to protect from or avoid predation.

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  Our file Odin a tree shows the transition in the

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  modern cows.

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  Um, and it also shows buffalo and Zebo being the

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  most related species to cows.

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  Our evidence of natural selection is in the angle of

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  the cows.

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  Horns being shifted upwards.

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  The smell of the cow became shorter.

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  Cows became much smaller compared to or ox, and longhorn

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  cattle underwent natural selection when becoming domesticated.

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  They became wild, the semi wild, and that's our presentation.