EVERYDAY SCIENCE

Detailed explanation-1: -WHAT’S THE TYPE OF SYMBIOSIS? RED CHESTED CUCKOO BIRDS find an unattended robin nest and push out the robin eggs. They then lay their own eggs in the robin’s nest and leave them for the robins to incubate the cuckoo eggs.

Detailed explanation-2: -Cuckoo birds will lay their eggs in other birds’ nests. These other birds are tricked into thinking it is one of their own eggs and will raise the chick. Cuckoo eggs hatch earlier and the chicks grows faster allowing the cuckoo to receive more food.

Detailed explanation-3: -A commensal relationship occurs when one species benefits from the close, prolonged interaction, while the other neither benefits nor is harmed. Birds nesting in trees provide an example of a commensal relationship (Figure 1).

Detailed explanation-4: -Cuckoos are parasites (of the warbler). The cuckoo benefits from the relationship, and the warbler is harmed by the relationship.