I Learned This Today

#234 Why do skunks smell so bad?

I learned this today. Skunks smell so bad because they spray an organic compound that has sulfur in it. Skunks are mostly […]

I learned this today. Porcupines don’t actually shoot their quills. The quills just detach very easily and stick in the predator. Porcupines […]

I learned this today. Sloths move so slowly because they have an extremely low metabolic rate. There are six species of sloth […]

I learned this today. Many animals can run quickly because they have four legs, run on their toes, and have bodies […]

I learned this today. Deep sea fish can survive because they don’t breathe in the same way that we do. However, […]

I learned this today. Cows combine nutrients from their blood, sugar, fat, and water in their udders to produce milk. All mammals, […]

I learned this today. Fish that live in saltwater have evolved to draw in large amounts of water through osmosis to replace […]

I learned this today. A pearl forms in the shell of a mollusk when an irritant becomes trapped there and the mollusk […]

I learned this today. Vellum is a material for writing on that is made from prepared animal skin. The document on the […]

I learned this today. Octopuses have blue blood because they have adapted to live in cold, deep water. Octopuses live in every […]