Life & Evolution

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male giant water bug carrying eggs on its back

WHEN DAD BABYSITS  Those eggs on the back of a male giant water bug (Appasus japonicus shown) are so attractive to females that sexual selection may be a major force in maintaining dads-only care for young.

nightshade leaf with goo and ant

Tests suggest that nightshade goo contains lots of sugar and some amino acids that may help attract protective ants like Lasius niger (shown). Researchers suspect that a common hormone called jasmonic acid induces its production. 

a sleeping Australian dragon

CATCHING Z’S While sleeping, this Australian dragon (Pogona vitticeps) shows brain wave patterns similar to those of slumbering birds and mammals. 

Life & Evolution

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