One of the largest old elm trees in Toronto — possibly in all of southern Ontario — is on its last legs. But as the city ...

Knowable Magazine reports on how harnessing the heater to attract pollinators may have first happened more than 300 million ...

In landlocked Arizona, where the Colorado River crisis has put water use under a microscope, a new inland desert fish farm is growing barramundi, a tropical species native to Australia. (AP Video: ...