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TIL Cylindrical aluminum cans have optimal geometric characteristics from spheres and cuboids for material and packing efficiency respectively.

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R7n9l TIL that cheetahs are so shy & awkward that some zoos provide them with "support dogs" to tackle their social anxiety!!
V5J8 TIL John Glenn was the first person to eat in space aboard Friendship 7 in 1962. At that time it was unknown if ingestion and absorption of nutrients were possible in zero gravity. Glenn ate applesauce, demonstrating that people could eat, swallow, and digest food in a weightless environment.
WkKdL TIL some of the Dungeons and Dragons monsters, such as the owlbear or the bulette, were inspired by unrealistic weird-looking creatures that the game's creator found in a "Prehistoric Animals" toy set.
epABk TIL Rapid ʻŌhiʻa Death (ROD) is a fungal disease that is rapidly killing forests of ʻōhiʻa (Metrosideros polymorpha)—an ecologically important native tree species within the Hawaiian Islands that has provided a plethora of habitats for endangered birds and other species.
b9KOa TIL that eating grapefruit (and a few of its close relatives) can increase the side effects of certain medications by disrupting a specialized group of proteins in your liver and small intestine called cytochrome P450 (CYPs).