Collections — a book for every curiosity

Species set · Easy

The resourceful creatures thriving in cities and suburbs.

A set is a themed hunt: fill every slot by identifying its species in the wild, one photograph at a time.

Completion badge: City Naturalist

Mammal · Field guide

Vulpes vulpes

A slim, adaptable fox whose white-tipped tail is often the quickest field mark.

How ecosystems connect

Ecosystem chains

Twelve links from producer to predator. Bind the chain by finding every one.

Fauna Pro12 species · Medium

Fauna Pro12 species · Easy

Fauna Pro12 species · Hard

Fauna Pro12 species · Expert

For every curiosity

Themed hunts — night creatures, backyard birds, dog breeds, the shore at low tide.

Fauna Pro8 species · Easy

Fauna Pro8 species · Hard

Fauna Pro8 species · Expert

Fauna Pro8 species · Hard

Fauna Pro12 species · Medium

Fauna Pro12 species · Expert

Fauna Pro12 species · Hard

Fauna Pro12 species · Medium

Locked books keep their species a surprise. In the app, each opens with a one-time Explorer Pack, and Fauna Pro opens them all.

Every scan writes a page

Identify a species in the wild and it takes its place in every book that wants it, with the photo, date, and location remembered.