One day, these tiny leopard tortoises will weigh more than 100 pounds - but first, they're going to have to eat a lot of watermelon. Want to know more about the cute vegetarians? Watch here.
Violent people are often the product of violent surroundings. But genetics can play a role, too. Traumatic experience can be passed down from generation to generation — and manifest itself in violent outbreaks.
Think being gay is unnatural? Then look no further than the animal kingdom, where homosexuality is very common. Studies suggest that around 1,500 animal species practice same-sex coupling, from fish to birds and mammals.
Biologist Timothy Mousseau has spent years collecting mutant bugs, birds and mice around Chernobyl and Fukushima. In a DW interview, he shares some surprising insights into the effects of nuclear accidents on wildlife.
Some animal species can do very well without male partners. Mourning geckos are just one of many examples. Their reproduction method — known as parthenogenesis — is our natural phenomenon of the week.
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