Nature takes back world's empty city streets

As humans retreat into their homes as more and more countries go under coronavirus lockdown, wild animals are slipping cover to explore the empty streets of some of our biggest cities.

Getting dust mites to leave homes on their own

House dust mites, nearly microscopic creatures that inhabit every crevice of our lives and make us sneeze, have long been assumed to be solitary in behavior. Now new research has shown that they are actually quite social.

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