Infectious tumour cells

Article Abstract:

Few studies are suggesting that some tumour cells could evolve to become infectious agents and be transmitted between individuals. It is suspected that the canine transmissible venereal tumour (CTVT) could be transferred between dogs by implantation of tumour cells from the donor to the recipient, where the tumour grows as a graft.

Health aspects, Development and progression, T cells, Animals, Animal diseases, Canine transmissible venereal tumor

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Evolution of indirect reciprocity

Article Abstract:

Various mechanisms are proposed and a rich analysis of indirect reciprocity has emerged, 'I help you and somebody else helps me'. The evolution of cooperation by indirect reciprocity leads to reputation building, morality judgment and complex social interactions with ever-increasing cognitive demands.

Analysis, Reciprocity theorems, Binary system (Mathematics)

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Prisoners of the dilemma

Article Abstract:

A biologist narrates how his meeting with Karl Sigmund, a mathematician brought together mathematics and biology. They conceived an evolutionary description of probabilistic strategies in the game called prisoner's dilemma struggling for co-operation by natural selection.

Research and Development in the Physical, Engineering, and Life Sciences, Management dynamics, Biologists, Interpretation and construction, Practice, Evolution (Biology), Evolution

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