What's New

New creatures and notable changes, newest first.

June 27, 2026
Changes
- Added this What's New page so you can see what's been changing.
June 26, 2026
New creatures
- Pliosaurus
- Amargasaurus
- Liopleurodon
- Titanoboa
- Meganeura
- Dimetrodon
Changes
- New "Other ancient creatures" category for prehistoric animals that aren't dinosaurs (Titanoboa, Dimetrodon, Meganeura).
June 5, 2026
New creatures
- Coelacanth
- Plateosaurus
- Coelophysis
- Dimorphodon
- Saltasaurus
- Stygimoloch
June 3, 2026
New creatures
- Thalassodromeus
- Archelon
- Deinosuchus
- Mom (5′3″)
- Littlest Brother (2yo)
Changes
- Added a Mom human reference (5'3") and a Littlest Brother reference (2yo, 2'8").
June 2, 2026
New creatures
- Dilophosaurus
- Apatosaurus
- Gallimimus
- Therizinosaurus
- Deinonychus
- Baryonyx
- Kentrosaurus
- Compsognathus
- Mosasaurus
- Ornithomimus
- Nanuqsaurus
- Herrerasaurus
- Eoraptor
Changes
- Added preset Groups as an easter egg — try ?group=longnecks, ?group=tiny, ?group=raptors, or ?group=wsy.
- Tablet-size screens now use the mobile layout (with the iOS-style bottom selector).
- Desktop picker now pins your selected creatures at the top, so they're easy to swap out while browsing.
May 29, 2026
New creatures
- Elasmosaurus
- Mapusaurus
May 25, 2026
New creatures
- Blue whale
- Giraffe
- African elephant
- Orca
- Sperm whale
- Giant squid
- Anglerfish
- Polar bear
- Silverback gorilla
- Microraptor
Changes
- Added a Modern Animals category so you can compare dinos against living creatures.
May 24, 2026
New creatures
- Tyrannosaurus rex
- Diplodocus
- Brachiosaurus
- Argentinosaurus
- Spinosaurus
- Giganotosaurus
- Allosaurus
- Stegosaurus
- Ankylosaurus
- Triceratops
- Parasaurolophus
- Pachycephalosaurus
- Micropachycephalosaurus
- Velociraptor
- Utahraptor
- Archaeopteryx
- Pteranodon
- Quetzalcoatlus
- Rhamphorhynchus
- Plesiosaurus
- Kronosaurus
- Ichthyosaurus
- Ichthyotitan
- Megalodon
- Tiger (Siberian)
- Jaguar
- Green anaconda
- Me (5yo)
- Little Brother (4yo)
- Dad (5′10″)
Changes
- Dinosizer launched — compare dinosaurs by length or height, with human references for scale.