This is an electron microscope image of a dust particle rounded by eolian transport. It originated in the Sahara desert and was found in 7.2 million year old sediments in Greece. Disclaimer ...

Caption Scanning electron microscope image of a two-spotted spider mite, which is less than one millimeter long. Richard Clark of the University of Utah helped lead an international team of 55 ...

A majority of Anna’s hummingbirds may host Proctophyllodes huitzilopochtlii feather mites in their tail flight feathers, according to a study published last week (February 14) in PLoS ONE. Researchers ...