The males of the species prepare for mating season by excavating nests for the approval of the females — and even other birds and animals.

Along the final stretch of the Seyhan River, in southern Türkiye, plastic bits in various colors dot the water and sediment. When the river bends, shredded plastic, degraded by the elements, forms ...

The Yurok Tribe says it believes a pair of condors released in 2022 have built the first nest in their ancestral lands in more than 100 years, and could be incubating their first egg.