Varieties in the Calathea genus are air-purifying plants you'll want to keep in your home, but they can be finicky. However, Lisa Eldred Steinkopf, Houseplant Guru, and Author of "Houseplants: The ...

Mammals represent one of the most diverse groups of creatures within the animal kingdom, and it all comes down to their warm-blooded nature. Mammals can maintain higher body temperatures than reptiles ...