Baby seals can change their tone of voice

Hoover the ‘talking seal’ famously imitated human speech. But can baby seals already adapt their voices to sounds? Researchers have now studied seal pups only a few weeks old. The pups lowered the pitch of their voice when they heard louder noises. Thi…

The silent build-up to a super-eruption

It is estimated that about 5-10 volcanoes worldwide are capable of producing a super-eruption that could catastrophically affect global climate. One of these volcanoes hides below the waters of Lake Toba in Sumatra and has caused two super-eruptions in…