Researchers report that menopause developed because men became more and more interested in finding younger, more attractive mates.
Researchers found that the largest shark hatchlings eat the smaller and weaker ones in the wombs of their mothers.
The researchers believe that natural selection has changed from impacting mortality rates to fertility rates.
Inbreeding is a problem because it increases a person’s risk for receiving two copies of recessive mutations that lead to rare genetic disorders.
It is no wonder that when you take care of some things, they last like your mobile phones, or your toy collection, or even your home decorations. The same goes for gardening. Sure, you probably started gardening as a hobby, or you've been talked into creating one. But in the long run, you'll know that it is a lifetime commitment.