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knockout mouse
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Quizzes
Sea otter (Enhydra lutris), also called great sea otter, rare, completely marine otter of the northern Pacific, usually found in kelp beds. Floats on back. Looks like sea otter laughing. saltwater otters
Animal Group Names
Lion (panthera leo)
Deadliest Animals Quiz
Mute swan with cygnet. (birds)
Match the Baby Animal to Its Mama Quiz
vulture. An adult bearded vulture at a raptor recovery center. The Gypaetus barbatus also known as the Lammergeier or Lammergeyer, is a bird of prey and considered an Old World vulture.
Animal Factoids
Read Next
Flying bat
Are Bats Rodents?
Collage of different cats. Made for the cat quiz on Mendel
16 Questions About Pets Answered
Rows of tassled corn in a Nebraska field. (agriculture)
Pro and Con: GMOs
Spider monkey swinging in a tree. (primate, jungle animal)
Why Do Animals Have Tails?
Genetically modified corn field. Genetically Modified Organism (GMO), transgenic corn, maize, agriculture, biological.
Do GM Foods Affect the Body Differently?
Discover
Internet http://www blue screen. Hompepage blog 2009, history and society, media news television, crowd opinion protest, In the News 2009, breaking news
Who Invented the Internet?
Alpaca and Llama side by side
What’s the Difference Between Llamas and Alpacas?
Aspirin pills.
7 Drugs that Changed the World
Flags of the United Kingdom of Great Britain - England, Scotland, Wales, Northern Ireland and the Union Flag.
Acts of Union: Uniting the United Kingdom
Aurochs. Bos primigenius. Skeleton. Extinct animal. Skeleton of an Aurochs, an extinct wild ox.
6 Animals We Ate Into Extinction
Portrait of a mountain gorilla at a short distance. gorilla close up portrait.The mountain gorilla (Gorilla beringei beringei)
Falling Stars: 10 of the Most Famous Endangered Species
Illustration for Demystified "How Dangerous is Quicksand"
How Deadly Is Quicksand?

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Related Topics and References

Topics

Key People

Smithies, Oliver
Oliver Smithies
American scientist
Martin Evans
Martin Evans
British scientist
Mario R. Capecchi
American scientist

Related Quizzes and Features

Quiz
Mute swan with cygnet. (birds)
Match the Baby Animal to Its Mama Quiz
Lion (panthera leo)
Deadliest Animals Quiz
vulture. An adult bearded vulture at a raptor recovery center. The Gypaetus barbatus also known as the Lammergeier or Lammergeyer, is a bird of prey and considered an Old World vulture.
Animal Factoids
Sea otter (Enhydra lutris), also called great sea otter, rare, completely marine otter of the northern Pacific, usually found in kelp beds. Floats on back. Looks like sea otter laughing. saltwater otters
Animal Group Names