Come hither, says plant

Come hither, says plant

Study finds that bees “read” the electric field of a flower. First-ever detection of electric-field detection by animal not in water makes evolutionary sense, but how come nobody ever saw this before? More »

Cotton pollination

Cotton pollination

This image shows a very small portion of a cotton flower magnified more than 500 times. The spike-covered orbs are cotton pollen grains stuck to the papillar surface of the stigma, a sticky surface with finger-like projections. The stigma is… More »

Pollinator crisis ahead

Bee with stinger coming from its snout poking its head out of the dirt
Many of the tastiest crops can’t pollinate themselves: melons, cucumbers, strawberries, almonds, cacao. But pollinators — both native and managed — are under threat from diseases and pesticides. They aren’t finding enough to eat. Their colonies are dying. What can we do? More »

Death of the mastodon

Death of the mastodon
It’s one of the biggest puzzles of paleontology: Why did North America’s large mammals go extinct shortly after the glaciers melted about 15k years ago? New study suggests that hunters get the credit — or blame. More »

Fallin’ Pollen

Fallin' Pollen
Pollen image courtesy of NIAID.Ragweed pollen as seen under a microscope. Tissue, please… In honor of the sneezin’ season, this CSI is common ragweed pollen as seen under a microscope. Ragweed pollen is the principal cause of hay fever and… More »