906: Managing Invasive Plants And Ticks Together | Clue Into The Evolution Of The Bird Brain

Researchers are connecting two ecological problems in the Northeast in hopes of reducing the risk of tick-borne illnesses. Also, a “one-of-a-kind” fossil of Navaornis hestiae helps fill a giant gap in scientists’ understanding of how bird brains evolved.Managing Some Invasive Plants Might Reduce Blacklegged TicksIn much of the eastern US, October and November usher in an autumn peak of the blacklegged tick season.For years, researchers have noticed that these ticks, also called deer ticks, are more abundant on certain invasive plant species, like Japanese barberry, that create dense thickets in the forest understory. Now, a group of scientists in Vermont and Maine is investigating how managing these plants might decrease the number of blacklegged ticks—and the risk of people developing tick-borne illnesses, like Lyme disease and Babesiosis. After getting a $1.8 million grant from the National Science Foundation, they’re hoping to come up with guidance for landowners.Read the rest at sciencefriday.com.Ancient Bird Fossil Offers Clues Into How Bird Brains EvolvedArchaeopteryx is the earliest bird-like dinosaur that we know of. It lived 150 million years ago, but researchers don’t know much about how the bird brain evolved from then to now.An 80 million-year-old bird from the Mesozoic Era is now helping fill in the blanks. It’s called Navaornis hestiae. Researchers uncovered a fossil of this species, which was previously unknown to science, in Brazil in 2016. That specimen has a remarkably well-preserved skull, which a team of paleontologists used to digitally reconstruct the bird’s brain. The researchers recently reported their findings in the journal Nature.Ira talks with a lead author of the study, Dr. Luis Chiappe, a paleontologist and curator at the Natural History Museum of Los Angeles County in California.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.

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