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 ...
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