2 ideas from Guinness World Records, each explained in a minute and credited to the original work. Free on Savvy.
Oymyakon, home to a few hundred people in Russia's Sakha Republic, has recorded temperatures as low as -67.7C (-90F) — the lowest ever measured in a permanently inhabited settlemen…
— Guinness World Records, Lowest temperature - inhabited
Deer antlers are true bone, yet they can lengthen by up to 2.5cm a day — over 300 times faster than a human growth plate — before being shed and regrown from nothing the following …
— Standard biological accounts; Guinness World Records (fastest-growing mammalian tissue), Antler