SciShow News: Bugs, Brains, and Dinosaurs

This SciShow News episode discusses two main topics: the discovery of extinct ticks in amber with dinosaur feathers, providing insights into dinosaur parasites, and a study on the brain's role in stopping motion, revealing the coordination between different brain regions. The episode concludes with thanks to patrons and a call to subscribe.

What is the main focus of this week's SciShow News episode?

• Modern bird evolution

• Dinosaurs and their habitats

• Arachnids and brains

• Bugs and brains

What was found entangled in a piece of dinosaur feather?

• A tick

• A spider

• A mosquito

• A beetle

Why is the discovery of the tick significant?

• It provides direct evidence of what ticks fed on

• It shows ticks were larger in the past

• It is the first tick ever found

• It proves dinosaurs had no feathers

What indirect evidence suggests ticks were dinosaur parasites?

• Ticks with blood

• Ticks found in nests

• Ticks with feathers

• Ticks with beetle setae

Why can't we clone dinosaurs from ticks in amber?

• Ticks do not contain dinosaur DNA

• DNA extraction from amber is impossible

• Ticks are too small

• Amber is too fragile

What challenge do humans face when trying to stop a motion?

• Slow brain signal coordination

• Weak bones

• Lack of muscle strength

• Poor eyesight

Which part of the brain was previously thought to send the 'stop' signal?

• Temporal lobe

• Prefrontal cortex

• Premotor cortex

• Occipital lobe

What method was used to monitor human brain activity in the study?

• EEG

• CT scan

• PET scan

• fMRI

What did the researchers use to monitor the monkey's brain activity?

• fMRI

• Electrodes

• Ultrasound

• X-ray

What might explain why older people stumble more often?

• Vision problems

• Poor balance

• Slower brain communication

• Weaker muscles