Biogeography is the study of the geographical distribution of plants and animals.

A closeup of the head of a green heron.

Herons and Egrets in the Silicon Valley

Caitlin Dempsey

Egrets and herons are a familiar sight at many of the lakes and ponds found across the Silicon Valley.

A male Mexican wolf stands on a snow covered log.

Reintroduction of the Mexican wolf nears 25th anniversary

Mark Altaweel

Reintroduction efforts to improve Mexican wolf populations in the wild began in 1998 and recent populations now exceed 200 wolves.

A clump of dried and browned leaves in a bright green leaved deciduous tree.

What are Those Clumps in Trees?

Caitlin Dempsey

A dense clump of dried leaves and twigs in a tree is mostly likely a squirrel's nest, known as a drey.

A cropped closeup view of the monarch butterflies.

Monarch Butterfly Overwintering in California

Caitlin Dempsey

November and December are the best times to see large clusters of monarch butterflies overwintering in the coastal groves of California.

A diagram with shrubs and trees planted together to explain a Miyawaki Forest.

Benefits of Microforests

Katarina Samurović

Microforest projects use the Miyawaki method fast-track the growth of dense, biodiverse forests, aiming to achieve full growth in 20-30 years.