Do animals have umbilical cords?
All animals that are viviparous (give birth to live young instead of laying eggs) have umbilical cords.
Since mammals are gestated inside their mothers, all...
Why are sloths so slow?
The first piece of the puzzle to understanding why sloths are so slow is their low-calorie folivorous (mostly leaves) diet. Many other folivorous animals...
Do ants have hearts?
Ants, and insects in general, don't have hearts like humans have hearts, but they do have an organ called a dorsal vessel that pumps something called...
Do insects get fat?
A Florida entomologist in the 1960s found that he could turn about half of a mosquito's body weight into fat if he handfed it...
Can different bird species understand each other?
Birds communicate in various ways, but i'll be focusing only on audible communication in this post.
Robert D. Magrath, a behavioral ecologist at the Australian...