Shark trivia:How far does the shark smell the blood?

Shark trivia:How far does the shark smell the blood?

The 1-meter-long shark has a total olfactory membrane area of ​​4,842 square centimeters, so the shark’s sense of…
Octopus Trivia:Why is the blood of the octopus blue?

Octopus Trivia:Why is the blood of the octopus blue?

The color of blood is determined by the substance elements contained in blood cell proteins. The blood of…