Endangered Species

Only about 100 Amur Leopards remain in the wild worldwide.

The Mexican spider monkeys all arrived at the St. Louis Zoo in April after being seized as infants by federal authorities along the U.S-Mexico border last year.

Park leaders share what it takes to transform a golf course into a safari park, the zoo’s aim to bolster endangered species, and how the park will be a boon to local wildlife and the regional economy.

Since 1990, the St. Louis Zoo has played an instrumental role in bringing Tahitian snails back from the brink of extinction.

The number of monarchs migrating through St. Louis seems low this year, which has entomologists worrying about the population.

American red wolves were declared extinct in the wild in 1980, but conservation groups have since been working to repopulate the species.

The 425-acre plot sits in Spanish Lake, near Ferguson at the junction of the Mississippi and Missouri rivers.

The Sumatran orangutan newborn will boost the population of the critically endangered species.

One of the Missouri Botanical Garden’s corpse flowers named Octavia is expected to bloom this week. Its yet-unnamed clone will likely bloom next week.

In North America, up to 10 billion birds fly up to 20,000 miles round-trip each spring and fall.