Nature Notes
Why do rattlesnakes rattle and hummingbirds hum?
How do flowers market themselves to pollinators?
Why do tarantulas cross the road?
Nature Notes investigates questions like these about the natural world of the Chihuahuan Desert region and the Llano Estacado every week. Through interviews with scientists and field recordings, this Marfa Public Radio original series reveals the secrets of desert life.
Join host Dallas Baxter on Tuesdays and Thursdays at 7:45 am during Morning Edition and 4:45 pm during All Things Considered. New episodes premier on Thursdays and replay on Tuesdays. Episodes are written and produced by Andrew Stuart and edited by Marfa Public Radio and the Sibley Nature Center in Midland, Texas.
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Maize, aka corn, was first domesticated in southern Mexico some 9,000 years ago. Much of today’s corn descends from varieties grown by Native farmers in the eastern U.S. -
Moths that linger at artificial lights are easy prey for bats and birds, and they aren’t doing “moth stuff,” like pollinating night-blooming plants. But the impacts of artificial light extend far beyond this familiar example, and in fact pose a profound threat to insect populations worldwide. -
The Pecos County dinosaur prints are the most prominent in our region. But there are more than 50 such sites in Texas, from the Hill Country north to Fort Worth, and Dinosaur Valley State Park. -
They’re irresistible to children, but their flashes can enchant an observer of any age. Fireflies seem like magic. They’re mostly associated with sultry summer nights in the eastern U.S. But they are found in the arid West, including in our region. -
Though it’s certainly the most famous dinosaur, much about T-Rex, and its broader tyrannosaur lineage, remain a mystery. Now, scientists are taking a fresh look at tyrannosaur fossils from Big Bend National Park. -
Visible in the park’s southeastern corner, near the hot springs and Boquillas Canyon, the Boquillas Formation is a series of limestones and shales, in white, tan, yellow and brown. These rocks were laid down in shallow ocean waters across 10 million years, and they abound in fossils, which capture the emergence and extinction of countless creatures. -
Chickadees are found across North America. Their “chickadee-dee-dee” call is an alarm – the more “dee-dee-dees,” the more serious the threat – and it’s only one element in their vocal repertoire. -
Around the world, advocates are fighting to preserve dark skies, as a vital asset for humankind. But there’s also new research showing the importance of dark skies for nonhuman creatures.
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In March, a hunter on the O2 Ranch south of Alpine found what appeared to be an ivory tusk in an arroyo bottom. Ranch Manager Will Juett contacted archeologists at Alpine’s Center for Big Bend Studies. They confirmed the find: this was a mammoth tusk. -
Grasshopper mice are fierce, if diminutive, predators, that routinely dine on scorpions, centipedes and other venomous prey. And as they set out on their nightly hunts, they emit a long, piercing cry. It’s been called “a wolf’s howl in miniature.” Listening closely to these desert mice reveals the surprising world of “bioacoustics.”
