They are the smallest birds and the smallest warm-blooded animals on Earth. They have the fastest heart and the ... Researchers constructed the family tree of these nectar-eating birds using ...

It had optimal conditions for starting a family. "This nest is prime real ... The peregrine falcon, the world's fastest bird, is listed as rare in Victoria. Its fortunes improved worldwide after ...

Similar to wings and fins with self-adaptive flaps, the feathers on a diving peregrine ... Peregrine falcons are one of the world's fastest birds and may reach up to 200 miles per hour when ...

They have the fastest heart and the fastest metabolism of any vertebrate. They are the only birds that can fly backward. And scientists reported on Thursday that they also have a complicated ...