YOUR PARTY
Your party is your survivor plus a squad of dinosaurs. Ground battles use up to 4 dinosaurs; the separate Sea party also holds up to 4 aquatic species? .
HP & RECOVERY
Damage taken in battle is written back to the dinosaur, so party HP carries out of a fight. Between fights, dinosaurs slowly regenerate HP over time and the Medical Bay restores them to full. Rotate your party around who is fit to fight.
MOUNTS
You can assign a dinosaur as your mount, but only once you have the Pack Leader skill (rank 1 or higher). Until then the mount option stays locked.
Sector-to-sector travel? uses your party's median dinosaur speed. See Sectors & Travel.
BUILDING A GOOD SQUAD

Front line
High-VIG, high-DEF tanks (Ankylosaurus, Triceratops, Stegosaurus, Henodus) hold the line while damage dealers work.

Damage
High-ATK predators (Giganotosaurus, Tyrannosaurus, Spinosaurus, Mosasaurus) end fights fast; pack predators scale with their allies.

Speed
Fast creatures (Gallimimus, Utahraptor, Dimorphopteran flyers) act first and roll bonus actions? more often.

Support
Support species (Lystrosaurus, Parasaurolophus, Tapejara) heal and buff, letting a smaller squad punch up.