Latest Parental investment Stories
UC Riverside research shows fish with placentas are smaller and less brightly colored than non-placental fish
Researchers at the University of Exeter have found that sexual conflict over mating impacts the parental care behaviour and reproductive productivity of burying beetles.
It is common for parents to influence mate choice — from arranged marriages to more subtle forms of persuasion — but they often disagree with their children about what makes a suitable partner.
Many species pair for life, or so the story goes. In reality, there is quite a bit of cheating going on. Both male and female partners may have “affairs” outside the pair bond. In such cases, how is a male to know if the chicks he is feeding are really his?
New research conducted by Gustavo Santos Requena and his colleagues at the University of Sao Paolo shows the costs and benefits of exclusive paternal care, the rarest form of parental investment in nature, in the harvestman spider Iporangaia pustulosa.
Sexual reproduction can be thought of as a cooperative process in which two individuals come together to produce a new individual. It can also be viewed as a process in which two parties with differing interests, investment, and background interact to produce a new individual.
- To writhe; struggle or twist about with more or less force; wriggle.
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