Tonight, instead of a handful of short clips, we’re bringing you one half-hour video. On August 28, 1963, Marlon Brando, James Baldwin, Harry Belafonte, Charlton Heston, Joseph Mankiewicz, and Sidney Poitier gathered to discuss the Civil Rights Movement. Hosted by David Schoenbrun of CBS, the discussion occurred following the March on Washington for Jobs and Freedom. It’s both fascinating and poignant to hear how each of these men where personally affected by and involved in the Civil Rights Movement.
If you've ever seen a pirate movie (or had the privilege of listening to this avian-fronted metal band), you're aware that parrots have the gift of human-sounding gab. Their brains—not their beaks—might be behind the birds' ability to produce mock-human voices, the Sci Show's latest video explains below.
While parrots do have articulate tongues, they also appear to be hardwired to mimic other species, and to create new vocalizations. The only other birds that are capable of vocal learning are hummingbirds and songbirds. While examining the brains of these avians, researchers noted that their brains contain clusters of neurons, which they've dubbed song nuclei. Since other birds don't possess song nuclei, they think that these structures probably play a key role in vocal learning.
Parrots might be better at mimicry than hummingbirds and songbirds thanks to a variation in these neurons: a special shell layer that surrounds each one. Birds with larger shell regions appear to be better at imitating other creatures, although it's still unclear why.
Learn more about parrot speech below (after you're done jamming out to Hatebeak).