Zoo kills "surplus" giraffe in front of children, feeds it to lions

Did this giraffe really need to die? A Danish zoo shot and killed Marius, a healthy giraffe in their care, before feeding him to their lions... in front of a group of school children. » 2/10/14 8:10am 2/10/14 8:10am

How Mitochondrial Eve connected all humanity and rewrote human evolution

This month marks the twenty-fifth anniversary of the discovery of Mitochondrial Eve, the common ancestor of every human alive today. Here's everything you need to know about why the mother of humanity is so important. » 1/24/12 3:07pm 1/24/12 3:07pm

Inbreeding is what's secretly driving all the bedbug infestations

Bedbugs were pretty much wiped out in the United States back in the 1950s, but over the past decade they've returned with a vengeance. They're tougher and more resistant to insecticides than ever before, and it's all due to inbreeding. » 12/06/11 12:57pm 12/06/11 12:57pm

Why inbreeding really isn't as bad as you think it is

Inbreeding is where cousins and other close relatives have children together. Most cultures have strong taboos against it, primarily because of the increased risk of birth defects. Here's why that risk isn't all it's cracked up to be. » 11/30/11 9:50am 11/30/11 9:50am

Bananas have been hopelessly inbred clones for the last 7,000 years

If you want to see an evolutionary dead end, look no further than the supermarket produce aisle. Every banana you eat is an infertile clone, and its wild ancestors weren't much better when it came to finding new genes. » 7/06/11 1:13pm 7/06/11 1:13pm

Why humans are all much more related than you think

All humans can trace their family tree back to a surprisingly small group of common ancestors. Every person on Earth's most recent common ancestor might have died less than 2000 years ago. » 4/13/11 9:24am 4/13/11 9:24am

Plants evolve multiple genes to avoid the perils of inbreeding

Humans aren't the only organisms that possess taboos about inbreeding, although for plants it's not cultural, it's genetic. in order to keep plants from producing weaker offspring, they have evolved many genes to ensure they don't mate with themselves. » 11/07/10 1:00pm 11/07/10 1:00pm