Blue Whale
Balaenoptera musculus • "Mouse-like Whale"
The blue whale is a living baleen whale and the largest animal known to have lived. It is included here as a modern comparison, not as a dinosaur or prehistoric species. Its feeding anatomy is adapted to filtering small prey from seawater.
- Length
- ≈30 m
- Weight
- ≈150.0 t
- Diet
- Filter feeder
- Danger
- ★★★★★
Overview
The blue whale is a living baleen whale and the largest animal known to have lived. It is included here as a modern comparison, not as a dinosaur or prehistoric species. Its feeding anatomy is adapted to filtering small prey from seawater.
“Blue whales lunge through dense krill swarms, then push water out through baleen plates while retaining the krill.”
Key facts
Strengths
- Adapted to its prehistoric environment
Weaknesses
- Limited fossil evidence for detailed behavior
Natural weapons
- Natural jaws, teeth, or defensive anatomy
Movies vs. science
Myth: Popular media often simplifies prehistoric animal behavior.
Reality: Fossils provide the strongest evidence for anatomy and ecology.
Size & simulator stats
Adults can reach about 30 m long; size varies by population and individual.
- Length
- 30 m
- Height
- 5 m
- Weight
- 150.0 t
Illustrative simulator values (not measured biology)
See how Blue Whale measures up in the sourced size comparison chart.
Habitat
Oceans worldwide, with seasonal movements between feeding and breeding areas.
Oceans worldwide, with populations making seasonal migrations.
Diet
A filter feeder whose diet is primarily krill, small shrimp-like crustaceans.
Filter-feeder, eating mostly krill and other small prey filtered through baleen plates.
Fossils & discovery
First described from Fossil record (Multiple fossil formations).Blue whales lunge through dense krill swarms, then push water out through baleen plates while retaining the krill.
Research sources
Sources checked on by the Dinosaurs Names Editorial Team. Editorial policy
Gallery
Related dinosaurs
Battle Arena
Can anything beat Blue Whale?
Send Blue Whale into an illustrative matchup against any other species and compare attack, defense, and bite force.
Fight as Blue Whale