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Posts tagged mammals

June 11, 2013


Rats, humans, and other vertebrates evolved from a common ancestor that already had a system of muscles for moving the eyes

Double Vision Normal For Rats

Rats have a strikingly different visual system than our own, one that is carefully attuned to their unique needs.

August 13, 2012


a sun bear sitting in a tree

The Bare Necessities Of Bears

We can all hum the song from the "Jungle Book", but what really are the bare necessities for a big bear?

May 9, 2012



Reindeer Have Ultraviolet Vision

Scientists tested eighteen reindeer with light, and found that their eyes responded to both visible light and ultraviolet.

November 1, 2011


close up of a fruit fly

Flies’ Eyes And Human Eyes May Be Closely Related

Scientists found that nearly identical genes play key roles in the formation of the eyes in mammals and fruit flies.

March 3, 2011



How Chromosomes Vary Across The Animal Kingdom

In mammals, the sex of a baby is determined by the chromosomes it inherits from its parents. But, the combination an animal inherits can be quite different.

March 2, 2011


unisex bathroom sign

How To Define “Male” And “Female”

Sure, there are physical differences but outside of mammals, the terms "male" and "female" take on different meanings.

May 25, 2010



Why Do We Have 10 Fingers And 10 Toes?

Why not 5 or 15? Why is 10 the magic number when it comes to fingers and toes?

April 6, 2010



Which Whale Came First, Meat-Eating Or Plant-Eating One?

Scientists have always struggled with this riddle...however, new research is giving some clues to the answer.

July 7, 2009



Sneaky Botflies and Clever Reindeer

Botflies are parasites that deposit larvae inside the noses of their hosts, including reindeer. To adapt, the deer learn elaborate behaviors to avoid the flies.

June 17, 2009


Whale jumping out of ocean water

How Whales Became Sailors

Learn how whales became sailors on this Moment of Science.

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