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.
Hum Of The Universe, Cephalopod Event In Miami. June 30, 2023, Part 1
Social Media Chaos, Remembering Whale Song Scientist Roger Payne. June 23, 2023, Part 2
Cephalopod Week Salutes See-Thru Squid, Hyperbole In Science Publishing, Art and the Brain, Rover Competition. June 23, 2023, Part 1
Avian Flu, Curly Hair. June 16, 2023, Part 2
Science Books For Summer Reading. June 16, 2023, Part 1
Living Underwater For 100 Days, Refineries’ Excess Emissions, Owl Facts. June 9, 2023, Part 2
Wildfire Smoke, Jurassic Park Reflection, Mosquito DNA Editing. June 9, 2023, Part 1
Dwarf Tomatoes, Saguaro Cactus, Sonoran Desert. June 2, 2023, Part 2
Rewilding, Allergy Season, Sharing Science Rejections. June 2, 2023, Part 1
Zoonomia Genetics Project, Telomeres, Mutter Museum. May 26, 2023, Part 1
Experiencing Pain, Grief and the Cosmos, Ivory-Billed Controversy. May 26, 2023, Part 2
Weight and Health Myths, A Corvid Invasion. May 19, 2023, Part 1
The B Broadcast: Bees, Beans, Bears, and Butterflies. May 19, 2023, Part 2
Star Trek Science, Listening to Pando. May 12, 2023, Part 2
US COVID Health Emergency Ends. May 12, 2023, Part 1
Antibiotic Resistance, Space Launches and the Environment, Phage Therapy. May 5, 2023, Part 2
Why Rats Love Cities, Science Of Saliva And Taste. May 5, 2023, Part 1
Personifying AI, The Reading Brain, Environmental Sampling Via Bees. April 28, 2023, Part 2
History And Science Of Chickens, Climate Activism, Pipeline Movie. April 28, 2023, Part 1
Introducing Our New Podcast: Universe Of Art
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