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TIL 'Turritopsis dohrnii', the immortal jellyfish, is a species of small, biologically immortal jellyfish that lives forever. They never die of old age but transform themselves back into their juvenile state. It is the only known species that has figured out how to defeat death.

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QJxJ6 TIL that hummingbirds build nests near and below hawk nests because their predators are scared of the hawks and tend to avoid hawk nests. Survival rates are higher for eggs laid in a cone-shaped area near/below hawk nests
Xb96 TIL When an NPR reporter says “We reached her on Skype” they’re doing so not to plug the service, but because Skype’s terms of service require it.
8aW5V TIL that plate armor and firearms had coexisted for over 300 years in Europe. Armor had been in an arms race against firearms during that time, and it wasn't until the 16th century that full body armor was phased out in favor of prioritizing protection of vitals.
x6EWB TIL Sumomomomomomomomo, a Japanese racehorse that was dubbed “the horse that makes commentators cry” because of its tongue-twister name. Its name translated means “Plums are peaches, and peaches are peaches, and plums and peaches are both types of peaches.”
5YeJD TIL that there was an episode of the Twilight Zone in which three astronauts survive a crash landing and wander through the desert until the last man alive realizes he never left earth. Rodd Serling would use a lot of this plot for a film he helped write called "Planet Of The Apes"