A baby whale is called a calf. Whales form groups to look after calves and feed together. These groups are often made up of all female or all male whales.

Kermit the Frog was named after Kermit Scott, a childhood friend of creator Jim Henson, who became a professor of philosophy at Purdue University.

Every day the human stomach produces about 2 liters of hydrochloric acid.

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