Triturus newts are the best understood, but similar cases are known in some plants and insects. An evolutionary trap Once established, the system is almost impossible to eliminate. When a "healthy" ...

Journal of Herpetology, Vol. 20, No. 3 (Sep., 1986), pp. 416-422 (7 pages) Theory predicts that if males invest nothing in their offspring except genes, they should maximize their reproductive success ...

Conflicts between structural requirements for carrying out different ecologically relevant functions may result in a compromise phenotype that maximizes neither function. Identifying and evaluating ...

In Triturus newts, half of all offspring die. Scientists have long known that one part of their DNA—chromosome 1—exists in two different versions. Animals need both versions to survive. During ...