How did doctors figure out if women were pregnant back in the day? They used frogs, of course! Before the 1960's, the only reliable pregnancy test involved injecting a woman's urine into an African clawed frog and seeing if the frog spawned.

This peculiar method, known as the 'frog pregnancy test,' may sound bizarre today, but it was a common practice in the early to mid-20th century. The African clawed frog, a species native to sub-Saharan Africa, was preferred for this test because of its unique reproductive system.

If a woman was pregnant, her urine would contain hormones that would induce the frog to lay eggs, confirming the pregnancy. While this method may seem unusual by modern standards, it was an early example of using biological indi ...

Kösen's height was caused by the production of too much growth hormone due to a tumour in his pituitary gland. The tumour was eventually removed in 2010 through revolutionary gamma-knife surgery. Amge has a form of dwarfism, caused by a mutation in a bone growth gene.

Turns out big cats like the taste of dog - a new study of scat samples found that 87 per cent of the diet of Indian leopards was made up of domestic animals, with dogs being the most common prey item.

Launched into orbit three years ago, a vial of Scotland's 'space whisky' is due home so researchers can see how the conditions in space affect flavour. This is one small step for man, one giant leap for whisky.

This specimen of Millerite, housed at the Royal Ontario Museum, is one of the rarest examples in the world, with tiny, crystalline hairs that have grown from the initial rock.

Unlike most arachnids, scorpions don't lay eggs; they bear live young. The babies are unable to feed or defend themselves so the mother carries them on her back for the first few weeks of their life.

The earthquake that struck Chile in 2010 was the sixth largest ever recorded - and made itself felt as far away as Antarctica. After the quake, several Antarctic seismic stations registered "icequakes," probably due to fracturing of the ice as the planet’s crust shook.

It's official: a deep-sea octopus has broken the world record for time spent defending her eggs. After 4.5 years, they've finally hatched, so someone pass Octomum eight glasses of wine - she's earned them!