And then there were 6 — kinds of taste, that is

Scholars have discovered evidence of a sixth basic taste. The tongue responds to ammonium chloride, a popular ingredient in some Scandinavian candies. The OTOP1 protein receptor, previously linked to sour taste, is activated by ammonium chloride.  The …

Fear of humans pervades the South African savanna

Mammals living in South Africa’s Greater Kruger National Park, home to one of the world’s largest remaining lion populations, are far more afraid of hearing human voices than lion vocalizations or hunting sounds such as dogs barking or gunshots.

Why Roku Stock Lost 13% Last Month

Unpacking the financial policy change that took the wind out of Roku’s billowing sails last month. Is this a temporary tumble or a tune-up for a triumphant trajectory?