In the trees, through the water, and under the dirt: Snakes evolve faster than their lizard relatives, allowing them to occupy diverse niches. Also, researchers are working to understand just how baleen whales are able to produce their haunting songs.
Snakes Are Evolutionary SuperstarsLove ‘em or hate ‘em, new research shows that snakes deserve our recognition as evolutionary superstars. The study, published last week in the journal Science, found that snakes evolve faster than other reptiles, allowing them to thrive in a wide range of environments.
It shouldn’t be too surprising: Many of the nearly 4,000 snake species occupy extremely specialized niches in their ecosystems. The blunt-headed tree snake, for example, eats through batches of treefrog eggs in Central and South America. Pythons, which can grow to 20 feet long, can take down large mammals like antelopes.
Joining Ira to talk about the evolutionary speed of snakes is study co-author Dr. Daniel Rabosky, evolutionary biologist and curator of the Museum of Zoology at the University of Michigan.
Whale Song Is All In The LarynxWhale songs can be both beautiful and haunting. But the exact mechanism that the 16 species of baleen whales, like humpback and minke whales, use to make those noises hasn’t been well understood. The finer points of whale anatomy are hard to study, in part because the soft tissues of beached whales often begin to decompose before researchers can preserve and study them. And until the relatively recent advent of monitoring tags that can be attached to individual whales, it’s been hard to associate a given underwater sound with any specific whale.
For a recent study, published in the journal Nature, researchers took advantage of several well-preserved beached whales to investigate the mysteries of the baleen whale larynx and its role in whale song. Dr. Coen Elemans of the University of Southern Denmark joins Ira to discuss the work, which included a MacGyveresque contraption involving party balloons and exercise bands that blew air at controlled pressures through preserved whale larynx tissues. The researchers found that there are limits to both the frequencies these whales can produce, and the depths at which they are physically able to sing.
Transcripts for each segment will be available after the show airs on sciencefriday.com.
Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
686: NASA Delays Crewed Moon Missions | Top Technologies To Watch In 2024
683: To Get Ready For Mars, NASA Studies How The Body Changes In Space
682: Science Journalism Is Shrinking–Along With Public Trust In Science
680: (Part 2) Endangered Species Act At 50: Orchids And Red Wolves
679: (Part 1) Endangered Species Act at 50: Hawaiian Land Snails
681: Solar Activity Flares Up In 2024 | Underground Hydrogen Reserves And Clean Energy
678: SciFri Reads ‘The Alchemy Of Us’
677: SciFri Reads ‘The Kaiju Preservation Society’
676: Star Trek’s Science Advisor Reveals The Real Astrophysics On Screen
675: A Mathematician Asks ‘Is Math Real?’
674: Unmasking Owls’ Mysteries | Why It Feels So Good To Eat Chocolate
673: SciFri Reads ‘The Best American Science and Nature Writing 2023’
672: The Unseen World Of Seaweeds | Should 'Dark Fungi' Species Get Names?
672: How 'Panda Diplomacy' Led To Conservation Success
671: Music’s Emotional Power Can Shape Memories—And Your Perception Of Time
670: Top Science News Stories of 2023 | Solar Panels In Historic Cape Cod
669: Pennsylvania Drug Laws May Limit Syringe Services | These Romance Novels Represent Black Women In Science
668: Flame Retardant From Cocoa Pod Husks | The Oozy Physics Of Oobleck
667: The Military’s Carbon Footprint Is A Hidden Cost Of Defense
666: High Energy Cosmic Ray Detected | These Penguins Are The Masters Of Microsleeping
Create your
podcast in
minutes
It is Free
The Modern West
Just Dumb Enough Podcast
Voices of Misery Podcast
House of Whimsical Terror
Stuff You Should Know
Timcast IRL