Where did
Pachycephalosaurus
live?
Age of the dinosaurs
Many male animals
today compete to win
a mate. Stags crash their
antlers together, while
birds display colourful
feathers. Scientists
believe dinosaurs
had to compete in
similar ways.
Find a friend
What did they do?
Dinosaurs may have used their
head crests to show off,
just like a peacock uses
its colourful tail feathers.
Courtship displays tell
females which males
are strong and likely to
make healthy young.
Bone head
Pachycephalosaurus’s
head was
80 cm (2.5 ft) long. The dome
was made of solid
bone as thick as
a bowling ball.
Pachycephalosaurus
skull
Fighting fit
During the breeding season, male
Pachycephalosaurus
may have butted
each other in fights over females. Their
backbones were adapted to
absorb shock.
This dinosaur had
bony spikes on its
head and snout.
Pachycephalosaurus
Corythosaurus
Peacock
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