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11 animals that mate for life

By: Bryan Nelson on Feb. 24, 2016, 3:20 p.m.
French angelfish

Photo: Adam/flickr

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French angelfish

You're unlikely to ever find a French angelfish alone. These creatures live, travel and even hunt in pairs. The fish form monogamous bonds that often last as long as both individuals are alive. In fact, they act as a team to vigorously defend their territory against neighboring pairs, reports Smithsonian.

Researchers have also observed pairs of these patterned fish traveling to the water’s surface to release their eggs and sperm together.