This week we hear from readers about encouraging environmentalists, both young and old.

Reporting on disappearing or lost species helps shine a light on the environmental threats we all face and the people working to stop them.

The science on wildlife PTSD is a rapidly growing field: How do we detect and treat post-trauma in our wild friends? And how can we prevent it?

Research tells us that we need sustainable forest practices. But how does this knowledge lead to action?

Illegal trade in rare ornamental plants is booming — fueled by weak enforcement and a changing climate. But the theft of 1,000 cacti from the Chilean desert has led to a landmark court case in Italy.

The world depends on healthy insect populations. As climate change and other threats cause their declines, simple actions can give them a much-needed boost.

Wildlife journalist Jason Bittel’s new book is a wild ride (and a love letter) to some of North America’s most misunderstood (and amazing) animals.

“This is a dangerous argument they are making. Dangerous not just to the Florida scrub jay, but to a lot of endangered species.”

Conservation victories often look like moments. In reality they’re the visible tip of years — sometimes decades — of work, and we all too often fail to recognize the people responsible.

Although this species has been around for 100 million years, 90% of its population has vanished in just the past two centuries.