This Biology Class is the Best: Biology Fun Facts They Never Taught You in School

Does Type A blood turn on itself?

Did you know plants have more musical aptitude than you do?

Microbes are actually divided into Red and Purple factions!

All kinds of biological trivia will make you exclaim: "Elementary, my dear Watson, you've broken through the appendix!"

◎ Why do Asians have flatter noses? It turns out it's the climate's fault!

Caucasians living at higher latitudes tend to have long, prominent noses, which help warm and moisten the air entering the lungs; conversely, many Asians living in the tropics have wider nostrils because the climate is warm and humid.

◎ Did dinosaurs go extinct because of a meteorite, cooling temperatures, or their own farts?

One theory suggests that dinosaurs died out due to their own flatulence. After precise analysis, scientists believe that odorless nitrogen, carbon dioxide, hydrogen, and methane accounted for a large proportion of dinosaur farts. Given the vast variety, population, and massive size of dinosaurs, the amount of gas released over a hundred million years was considerable. This gas eventually damaged the ozone layer, leading to drastic ecological changes and food shortages, resulting in extinction.

◎ Why do egrets only lay three eggs? The truth is chilling...

The first two eggs laid by an egret contain large amounts of growth hormones and other chemicals that aid embryonic growth, while the third egg receives only half the growth hormones of the former.

When the three eggs hatch successfully, the first two chicks, having received more nutrients, will kill the third; however, if one of the first two dies prematurely, the third chick is able to survive.

◎ Do you know about the mysterious "Elephant Graveyard"?

Legend has it that before an African elephant dies, it must find a secret burial ground. About fifty years ago, an expedition in the dense African jungle discovered a cave filled with piles of ivory and elephant bones...

But why do elephants want to die together, and how do they find the graveyard before death? Some zoologists believe that herds collectively bury dead elephants, but why can't people find these burial grounds?

★ Let's travel through time, dive into the deep sea, and walk into the forest for the most exciting biology class ever ★

From the origin of life to the appearance of humans, from strange and exotic animals to a diverse array of plants, this is a knowledge-filled book that reveals mysteries and showcases the colorful biological world. It covers billions of years of biological wonders as well as various curiosities around us, with novel topics and a wide scope!