These animal mothers expect other species to raise their young

Some birds and other animals are 'brood parasites' whose mothers leave their offspring with other species. A common reed ...
Variety

‘Cuckoo’ Director Tilman Singer on Creating the Hooded Woman and Why Mystery and Horror are the Perfect Pair: ‘It’s Like Vanilla and Chocolate Ice Cream’

SPOILER ALERT: This article contains minor spoilers for “Cuckoo,” now playing in theaters. Roughly 40% of cuckoo bird species are “brood parasites.” Instead of building its own nest, the cuckoo ...
Mongabay

‘Masters of deception’ cuckoos evolving into new species

Many cuckoos like to outsource their parenting. These medium-sized birds lay their eggs in the nests of other bird species, tricking the unsuspecting hosts into raising their chicks. In some cuckoo ...