EVERYDAY SCIENCE

Detailed explanation-1: -Protocooperation is an interaction between two living organisms of different species which is mutually beneficial, but both organisms can survive successfully without the relationship. In the aforementioned relationship, the bird feeds on the ectoparasites in the crocodiles mouth.

Detailed explanation-2: -Mutualism occurs when both species benefit from the interaction. Crocodiles have a mutualistic relationship with plover birds. Plover birds will eat leftover food from between the crocodile’s teeth, giving the bird a free meal and the crocodile a trip to the dentist.

Detailed explanation-3: -The bird gets food and the crocodile gets rid of blood sucking leeches. Both the partners can live independently, such an association is. A) Mutualism.

Detailed explanation-4: -The relationship between a Nile Crocodile and an Egyptian plover bird is one of nature’s best examples of mutualism. When a croc needs a good flossing, he will simply open his mouth and wait. The plover bird will instinctively swoop in and pick tiny bits of meat from between the crocodile’s teeth.

Detailed explanation-5: -When a crocodile feels the need for a good tooth cleaning it will sit with its mouth wide open. The Egyptian Plover bird recognizes this invitation, and if one is nearby it will fly into the mouth of the crocodile, eat the food stuck in its teeth, and fly away.