
Arapaima with scales Arapaima gigas
Arapaima with scales Arapaima gigas Illustration from “30 Animals that made us smarter” by Patrick Ayree (BBC Books)

Arapaima gigas fish
Arapaima gigas fish showiung its distinctive scales and “etched” head Illustration from “30 Animals that made us smarter” by Patrick Ayree (BBC Books)

Peacock mantis shrimp Odontodactylus scyllarus
Peacock mantis shrimp Odontodactylus scyllarus with dactyl club tucked in under thorax. Illustration from “30 Animals that made us smarter” by Patrick Ayree (BBC Books).

Hylobacter
Hylobacter schematic illustration showing the bacteria with fringes