When the annual migration of hummingbears, a source of local pride and income, dwindles and no one knows why, Willodeen, armed with a magical birthday gift, speaks up for the animals she loves and vows to uncover this mystery.

Rick, a fourteen-year-old foster child, escapes from a juvenile detention facility near Las Vegas and travels to Canyonlands National Park in Utah where he meets a bird biologist working on a project to reintroduce condors to the wild.

Unable to control her tendency to burst into flame, twelve-year-old Ember, a dragon transformed into a girl by her foster father, is sent to Antarctica where she tries to save ice dragons from extinction.

Brenna, Maggie, and Zoe go to Florida to visit a manatee rescue center, where they learn about these endangered marine mammals.

While on her first hiking and camping trip, thirteen-year-old Sammy tries to solve a mystery involving endangered condors while avoiding scorpions, ticks, and embarrassment.

"Middle-schooler Louisa wants to spend the summer practicing violin for a place in the youth symphony, but is instead sent to the Tasmanian rainforest camp of her Australian relatives. There she learns that her family secretly protects the last of the supposedly extinct Tasmanian tigers. When an encroaching mining operation threatens the hidden sanctuary, Louisa realizes her music can help."--Provided by publisher.

Having used their magic tree house to travel to India, where they must get a gift to help free the dog Teddy from a spell, Jack and Annie have adventures involving a tiger and other endangered jungle animals.

For once, operations at the enormous zoo/theme park appear to be running smoothly (except for the occasional herring-related mishap in the penguin exhibit) and Teddy Fitzroy is finally able to give detective work a rest. But then a local lion is accused of killing a famous dog--and the dog's owner, an inflammatory radio host, goes on a crusade to have the cat declared a nuisance so it can be hunted. However, there's evidence that the lion might have...