Dinoroarus at the St Louis Zoo

The Saint Louis Zoo will transport guests millions of years back in time starting Friday, June 19, at Dinoroarus (DIE-noh-ROAR-us), a returning, temporary attraction for all-ages. The walk-through experience will feature 20 animatronic dinosaurs and sculptures that will move, roar, spit and chomp their way through the Zoo's Historic Hill, in the valley below the Charles H. Hoessle Herpetarium.

The collection spans the Late Triassic through the Late Cretaceous periods, representing more than 200 million years of prehistoric life that shares surprising connections with animals today. Guests will discover the latest science-backed dino facts, explore theories on mass extinction and learn practical ways to protect today's animals from the same fate.

Together, the figures feature more than 130 individual animated movements — from independently moving eyes, arms and tails to full-body sways and water effects.

"Dinoroarus is about fun and wonder, but it's also a reminder that no species is guaranteed a future,” said Michael Macek, Saint Louis Zoo Executive Director. “Extinction has happened before on a massive scale, and the choices we make today will determine which animals that future generations will get to know. Dinoroarus brings that lesson to life.”

New and returning highlights include:
A life-size Tyrannosaurus rex stretching nearly 40 feet long with 12 animated movements, including independently moving eyes, arms, neck and tail. The massive T. rex animatronic tips the scale at 5,400 lbs.
A towering Brachiosaurus (BRACK-ee-oh-SORE-us) is the largest animatronic in Dinoroarus, standing 23 feet tall and weighing about 6,500 lbs.
Three figures — the Baryonyx (bah-ree-ON-iks) and both Dilophosaurus (dye-LOF-oh-SORE-us) figures — feature water effects. The Baryonyx drools (a nod to its fish-catching lifestyle), while the Dilophosaurus can spit water at guests.
Four parent-and-baby pairs let families see dinosaur life stages side by side.
Several figures are depicted with scientifically accurate feathers and protofeathers, reflecting the latest paleontological understanding of dinosaur appearance.
A hands-on Fossil Dig interactive exhibit features a buried dinosaur skeleton, excavation tools and educational signage that invites kids to experience paleontology firsthand.

Admission

All tickets to Dinoroarus must be purchased in-person at the Zoo. Tickets may be purchased and picked up at Zoo entrances or any attraction ticket booth.
General admission tickets are $5.95 per person for ages 2 and up (free for children ages 0-23 months).
Dinoroarous admission is included in Zoo Member Tickets and the Zoo Adventure Pass.