The video discusses the Allosaurus, focusing on a well-preserved skeleton named Big Al discovered in 1991. Paleontologists have studied its bones to understand its life. The Allosaurus had a brain shaped like a crocodile's, suggesting similar behavior, but its skeleton indicated it moved like an ostrich. Big Al's bones showed rapid growth but also significant damage, indicating a challenging life. Injuries included a broken tail and fractured hand, likely from hunting or fighting. A foot infection may have led to its death from thirst during a drought. The eventual burial preserved Big Al's skeleton, providing insights into its life 145 million years later.

What significant discovery in 1991 helped scientists learn more about the Allosaurus?

• A well-preserved skeleton named Big Al

• A complete set of dinosaur footprints

• A new species of dinosaur

• A fossilized dinosaur egg

How did the shape of Big Al's brain suggest its behavior?

• It was shaped like a bird's brain, indicating it could fly

• It was shaped like a crocodile's brain, suggesting similar behavior

• It was shaped like a mammal's brain, indicating it was warm-blooded

• It was shaped like a fish's brain, suggesting it lived in water

What does the growth pattern of allosaurs indicate about their development?

• They grew slowly and lived for many decades

• They stopped growing after 2 years

• They grew at a constant rate throughout their life

• They grew rapidly and reached adulthood in just 7 years

What injury did Big Al sustain that might have affected its ability to hunt?

• A missing tooth

• A broken tail bone

• A damaged wing

• A fractured skull

What was the likely cause of Big Al's death?

• A volcanic eruption

• A predator attack

• Thirst during a drought

• A forest fire