Across a full human pregnancy, the extra energy cost to create a baby is estimated at around 50,000 calories - roughly 300 extra calories a day.

Astronauts cannot burp in space because the lack of gravity prevents food and gas from separating in the stomach as they do on Earth. Their diet is carefully designed to avoid foods that produce excess gas.

Otters have a favourite rock, often passed down through generations. They keep it in a built-in pocket under their forearms, using it to crack open shells and access food. They also play with it.

Live brown frogs were kept in fresh milk to prevent spoilage in rural Russia during the 19th century. Scientists recently discovered that the frogs' skin secretes antimicrobial properties that kill bacteria and slow spoilage effectively.

Bangladesh experiences six distinct seasons: Grishmo (summer), Borsha (rainy), Shorot (fall), Hemanta (cool), Sheet (winter), and Boshanto (spring).

Komodo dragons and beavers have iron-plated teeth, a feature that enhances the durability and strength of their teeth for specialized tasks.

Forrest Mars, the creator of Peanut M&M's, was allergic to peanuts. Despite inventing one of the world’s most popular nutty snacks, he couldn’t eat them himself.