The Facts About Dinosaurs & Feathers

The video explores the discovery and evolution of feathers in dinosaurs, starting with the Archaeopteryx fossil and leading to the Sinosauropteryx discovery. It discusses the variety of feather types and their functions, such as insulation, display, and aiding in hunting. The video also examines the evolutionary significance of feathers and their role in the transition from dinosaurs to birds.

What was the initial reaction to the discovery of feathers in dinosaurs?

• Immediate acceptance

• Skepticism and debate

• Complete rejection

• Indifference

Which fossil was crucial in linking birds to dinosaurs?

• Tyrannosaurus Rex

• Velociraptor

• Archaeopteryx

• Triceratops

What did the discovery of Sinosauropteryx confirm?

• Some non-avian dinosaurs had feathers

• All dinosaurs could fly

• Dinosaurs were reptiles

• Dinosaurs were mammals

What are protofeathers?

• Feathers used for camouflage

• Feathers used for swimming

• Feathers used for flying

• Basic filament structures

Which group of dinosaurs includes birds?

• Pterosaurs

• Ornithischians

• Sauropods

• Therapods

What is phylogenetic bracketing?

• A method to determine dinosaur size

• A technique to guess traits in related species

• A way to classify dinosaur diets

• A method to date fossils

Why might feathers have evolved in dinosaurs?

• For camouflage

• For digging

• For insulation and display

• For swimming

What was a possible use of feathers for ground-dwelling dinosaurs?

• Flying

• Swimming

• Digging

• Stabilizing grip while hunting

How did feathers help dinosaurs in terms of display?

• By attracting mates or signaling

• By making them look larger

• By making them invisible

• By helping them fly

What is an exaptation?

• A trait that evolved for one purpose but was later adapted for another

• A trait that is only found in mammals

• A trait that is no longer useful

• A trait that is unique to birds