In celebration of our first 200 years, we’ve selected 200 stories that provide a glimpse into the Academy’s rich history and amazing discoveries of yesterday and today.

Academy Unscripted is a new series featuring one-on-one conversations with Academy scientists.

From the trees to the ponds, you’ll find several species including some of our largest and most popular animals.

Engage volunteers to collect water quality data on their local streams

Explore the amazing world of machines!

From our playful sloth bears to South America’s largest bear, the Andean bear, encounter some of the world’s most magnificent bears.

Lions and tigers, oh my. Here you’ll find our family of large and endangered cats from around the world.

These are not your average birds—in this exhibit you’ll find swans, flamingos, and more.

The butterfly and moth develop through a process called metamorphosis.

Standardized evaluations of dog and cat temperament and behavior