The widespread practice of spaying or neutering cats before they are adopted may be inadvertently selecting for aloof cats.
New technologies could pave the way for these extinct creatures to make a comeback.
Mice raised with human brain cells produce faster learners -- and interesting ethical questions. ->
The ubiquitous city dwellers descended from Middle Eastern racing pigeons, new DNA studies show. ->
Brazilian authorities are going to begin cloning the DNA of at-risk animals to keep in captivity.
What's driven vipers to evolve a deadly venom? A need to defend themselves against opossums.
Sequencing the genes of the peaceful Bonobos could teach us something about ourselves.
These enigmatic invertebrates are helping to answer an age-old question: Which develops first, the mouth or the anus?
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