Smithsonian Magazine on MSN

Naked Mole-Rats Prefer Low-Oxygen Air That Would Kill Most Mammals, Adding to Their List of Death-Defying Superpowers

These underground rodents are the first mammals found to actively choose air with lower-than-normal oxygen levels. Their ...
AZ Animals on MSN

The Invisible Stinger: The Terror of the Irukandji Jellyfish

Irukandji jellyfish deliver one of the most painful possible stings. Learn what the experts say about the dreaded Irukandji ...