http://bit.ly/2AbEv8g How Beetles That Live Underwater Breathe Without a Scuba Tank Beetles, Respiratory System, Skin, Oxygen, Water, Research, your-feed-science When an insect is this small, it seems to be able to get away with an unusual technique for taking in oxygen. VERONIQUE GREENWOOD http://bit.ly/2In0wWA April 9, 2019 at 05:30AM