sciencing.com

9wx87 TIL blue whales appear larger than their true size because of refraction of light in water.
VMeEQ TIL plants often grow more after being watered with rainwater compared to regular water. Lightning in the atmosphere produces bio-available organic compounds (nitrates and ammonium, found in fertilizers) from the inert Nitrogen gas found in air, which then get dissolved in raindrops
awaYZ TIL that loons, of which there are five species, are the closest living relatives of penguins in the northern hemisphere. Unlike most other bird species that have hollow bones, loons and penguins have solid bones which decrease their buoyancy and allow them to dive deep in search of food.