The Goliath birdeater ( Theraphosa blondi) is the world’s largest spider, with a leg span up to 30 cm (12 in). Its hairy, ...

Since most of our planet is comprised of water - with the ocean making up over 70% of the Earth’s surface - there’s a lot to be discovered in the sea, and it’s a place that captivates at every turn.

About 5,000 species of crustaceans in the order Isopoda live in Earth’s oceans. According to the National Oceanic and Atmospheric Administration, they all have two pairs of antennae, compound eyes, ...