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CU Boulder research finds that carrying a pregnancy to term is riskier than having an abortion, especially for non-Hispanic Black women.

Religious calendars and festivals can force people to encounter certain ideas in the year.

Amanita species can be described as edible, inedible, poisonous, deadly poisonous, and psychoactive.

As soaring heat exposes artifacts that provide insights into ancient climate resilience and other important scientific data, the ice loss itself is reducing humanity’s resilience for the years ahead.

Monarch butterflies gained access to milkweeds after they evolved the metabolic trick of absorbing the cardiac glycosides by sequestering them in fat bodies.

Distinguished professor of chemistry notes rapid and positive changes during his 50 years on the CU Boulder faculty

'One of the most attractive features of my time in Boulder was the contact with colleagues and visitors in other disciplines. ... The intellectual importance of these contacts cannot be underestimated'

University’s standing has risen, but some spontaneity and bonhomie have been lost, art-history professor says

Mountain cicadas, Okanagana bella, are also found locally, and it is the only cicada common in the mountains.

A mating wheel allows a precise comparison of the colors and patterns of males and females The little marsh swarmed with insects. Tiny moths popped up from the grass, darted a short distance and then disappeared back into the grass. Small wood nymph butterflies kept searching for the perfect spot...