Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.

Do Rare Males Retain Reproductive Function? While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these species, rare males occasionally ...

Photo Caption: The Texas giant walking stick is the longest insect in the US. Photograph by Forrest M. Mims III. Several readers have asked me to identify giant insects in photographs they have sent.