› added 2 years ago

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TIL that some fish are obligate air breathers. Meaning they need access to air for a breath. Examples of some fish are betas, tarpons, and arapaimas.

Read more fishionary.fisheries.org

via reddit.com

P1aRV TIL in WWI 'Male' tanks had cannon and 'Female' tanks had machine guns.
lVe1 TIL that according to Marco Polo’s writings, Ghenghis Khan died from an injury caused by an arrow to the knee.
X07Qj TIL Marc-Antoine Fardin published a paper in which he cited photographs of cats in jars, baskets and salad bowls and concluded that cats have the properties of both solid and liquid objects. For this work, Fardon was awarded the Ig Nobel Prize in Physics in 2017.
KYvGB TIL that out of the approximately 50,000 known species of spiders, only about 25 (1/20 of 1%) contain venom that can, to some degree, injure humans. You should expect to find zero to three of these species in any particular locality. The term "medically significant" spiders refer to these species.
JYrdj TIL that diplomats carry 'diplomatic bags'. These house secret information or anything pertaining to the duties of the diplomats who carry it - diplomatic bags have just the same immunity as diplomats themselves, meaning it cannot be opened/searched by law enforcement in a foreign country.