April 30, 2009

Shorebirds: Western Sandpipers & Humans

Development along the California coastline is having an impact on Western Sandpipers and other shorebirds.

April 29, 2009

Shorebirds: Western Sandpipers Migration

Western Sandpipers are in a “frequent flyer” class of their own.

April 28, 2009

Science Diary: Cats – Call

For lions, there’s information to be gleaned from a roar.

April 27, 2009

Science Diary: Cats – Importance

Lions, tigers, and quite a few other species comprise the world’s pantheon of wild cats.

April 24, 2009

People of the Corn

For the indigenous people of Chiapas, Mexico, the corn crop embodies their hearts and souls.

April 23, 2009

Carpenter Bees: Sneaky

Some female carpenter bees engage in artifice and deception.

April 22, 2009

Science Diary: Cats – Iranian Cheetahs

Northern Iran is home to a small population of cheetahs, and scientists are helping local officials to protect these rare animals.

April 21, 2009

Science Diary: Lightning – Update

Weather balloons are providing scientists with new information about how electricity travels through lightning.

April 20, 2009

Science Diary: Bears – Churring

Grizzly bears don’t growl when they’re happy. They churr!

April 17, 2009

Carpenter Bees: Social

Carpenter bees are among the more solitary bees, sometimes living one to a nest.

April 16, 2009

Carpenter Bees: Nest

Bees are resourceful multi-talented insects, and some are skilled carpenters.

April 15, 2009

American Toads: Cross the Road

Why did the toad cross the road? Turns out he had a very compelling reason.

April 14, 2009

Science Diary: Bears – Seasonal

A mix of environmental factors and metabolic changes cue bears to seasonal changes.

April 13, 2009

Science Diary: Bears – Melatonin

Melatonin regulates the sleep-wake cycle for humans and other animals. Strangely, bears who are masters of hibernation, seem to produce very little melatonin.

April 10, 2009

American Toads: Birdlike Trill

They may not be as visible or as pretty as Robins, but American Toads produce some of the most melodious sounds of Spring.

April 9, 2009

New Species – Predicting

To help locate undiscovered species of animals, scientists have developed a new way to predict where they might be found.

April 8, 2009

Science Diary: Bears – Overview

What biological mechanisms tell a bear when it’s time to hunker down for the winter and awaken in the spring?

April 7, 2009

Science Diary: Redwoods – Update

What’s wrong with cutting down a forest if trees are replanted? Older trees appear to do a better job pulling carbon from our atmosphere.

April 6, 2009

Science Diary: Healthy Ocean – Update

Some fish species are in hot water, ecologically speaking, but as consumers we can help turn the tide.

April 3, 2009

Early Spring: Marmot’s Choice

Marmots risk starvation because of misleading cues that spring has arrived in the Rocky Mountains.

April 2, 2009

Early Spring: Unexpected Conditions

Warming weather and increased snowfall send mixed signals to migrating species.

April 1, 2009

Early Spring: Harbingers

A broad range of species of plants are blooming up to 46 days earlier now than they did three decades ago. The reason, biologists say, is global climate change.