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California condor births mark a milestone — and we have pictures to prove it

Why the Apollo 11 anniversary still matters

Beachgoers help save stranded whales

Birds' beauty and resilience shine through in winning Audubon images

Why your sunscreen is bad for coral reefs

What you need to know about chlorpyrifos

The problem with fake service dogs

Joshua trees face extinction by 2070 unless we address climate change

Ohio lost a third of its butterflies in 21 years — and it probably isn't alone

Why mountain goats are flying to the Cascades

10 things you should know about Ebola

One of New Zealand's rarest parakeets is having a banner breeding season