SciShow
Why Did the Rooster Lose Its Penis?
Why did so many birds ditch penises? Maybe it was natural or sexual selection, an accident, or in exchange for something way more useful to them. Whatever the reason, penis loss goes to show that internal fertilization doesn’t require a...
Curated Video
Spider Movement and Mating
This video provides a comprehensive overview of spiders and their unique characteristics. It discusses their venomous nature, hunting techniques, locomotion, defense mechanisms, reproductive behavior, and the fascinating ways in which...
Curated Video
Snake Hunting and Reproduction
This video provides an overview of snake mating and reproduction, including the use of hemipenis for internal fertilization, different mating behaviors and strategies, egg-laying and live birth, and the varying effects of venomous snake...