A brightly colored moth rarely seen in the U.S. (and bigger than a human hand) emerged from its cocoon Friday at the Peggy Notebaert Nature Museum – but you better get there fast if you want to see it.

Want to become a certified beekeeper? A new six-course program covers the history and economics of beekeeping, taxonomy of insects, botany, pollination and what to expect during your first year.

How local scientists played a key role in the arrest of three well-known elephant poachers in the Republic of Congo. 

Get a glimpse of life beneath the waves and see the “vibrant beauty of marine life” found in waters across the globe at the Shedd Aquarium this spring. 

A first-of-its-kind study involving nearly 60 stingrays at Shedd Aquarium indicates that the animals do not suffer from their interactions with humans – and might even enjoy it. 

Date or no date, single or taken, animals at Brookfield Zoo experienced Valentine’s Day with the best kind of gift: food.

Ben, a 40-year-old orangutan at Brookfield Zoo, underwent an emergency appendectomy last month after veterinary staff discovered a ruptured appendix. 

Nearly 30 years ago, scientists began collecting semen samples from Mexican wolves. On Sunday, Brookfield Zoo artificially inseminated one wolf as part of an effort to boost the genetic health of the endangered species. 

How feasible is raising livestock in the city? An urban agriculture advocate weighs in.

The grocery store chain says it is evaluating its supply chain “to see where additional change is needed” in response to public concerns over pork suppliers who confine pigs to tight metal crates.

The Chicago-based fast food chain agreed last year to work toward phasing out antibiotics from its beef and pork products. An Illinois nonprofit now wants McDonald’s to commit to a timeline to meet that goal.

The group Crate Free Illinois is calling on Trader Joe’s to stop purchasing pork from suppliers that use gestation crates, tight metal stalls that keep pigs in one position for the majority of their lives.

Ramar, one of the oldest gorillas in the country, celebrated a milestone birthday this month with a frozen “cake” filled with fruit and raisins. 

Brookfield Zoo welcomed a newborn gray seal on Dec. 26. The male pup weighed 36 pounds at birth and is expected to weigh more than 120 pounds by the time he is weaned at three weeks. 

A team led by Field Museum conservation ecologist Corine Vriesendorp has worked for 15 years to protect one of the most biodiverse places on Earth. This week, it was designated as a national park.

Brookfield Zoo is leading a first-of-its-kind study to collect data from dolphins and other aquatic mammals using a Fitbit-like device that figures to revolutionize human understanding of the animals’ behavior.