Here’s a surprise: The English royal menagerie of the 13th century included a polar bear. From The New American Cyclopædia, 1869:

In the reign of Henry III, of England … it is curious to record that a white bear was among the collection of wild beasts in the tower of London, for which the sheriffs of the city were ordered to provide a muzzle and an iron chain, to secure him when out of the water, and a long and stout cord to hold him when fishing in the Thames.

“The words italicized seem to identify the species beyond the possibility of error; but one would like to know whence the polar bear was brought, at that early day, so long previous to the commencement of arctic exploration.” Probably it was a gift from Haakon IV of Norway.

See Clara and MacFarlane’s Bear.

Haiti growls. A strange rumbling sound is heard periodically in the southwestern part of Hispaniola; locals liken it variously to the noise of “a heavy wagon passing over pavement, of thunder rolling in the distance, of dynamite exploding or of cannon being fired off, of water falling on dry leaves, of the wind blowing through high forest trees in a tempest.”

No one knows what causes the sound, known locally as the gouffre. It seems to be heard most commonly near the Chaîne de la Selle, a mountain chain in the south. Possibly it’s caused by small adjustments along a fault there.

From the Bulletin of the Seismological Society of America, December 1912. See also Brontides and The Yellowstone Lake Whispers.