Oxygen supply of mammals versus insects (IMAGE)

Arizona State University

Oxygen supply of mammals versus insects

Caption

Insect flight muscle (left) compared against mammalian cardiac tissue (right), contrasting the different size and space needed to accommodate the oxygen-supply structures of insects (tracheoles; profiles outlined in yellow) versus mammals (capillaries) (credit: Antoinette Lensink and Edward Snelling) 

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(credit: Antoinette Lensink and Edward Snelling)

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