A few thrips, aphids, beetles Similar non-insect groups a few snapping shrimp naked mole rats other cooperative breeders in birds and mammals The origin of sociality in insects. The altruist is able to raise more of some one else's brood than it could raise of its own offspring. This could also be due to two sequential queens, one replacing the other. We use paper wasps of the genus Polistes .
Alternative explanations exist.
Not only do you lose all future reproduction, but all the effort you put into your dependent young is wasted. You die and then they die. This disadvantage can be minimized by group care of young. If one individual dies, it no longer wastes its past effort because the dependent young will be reared by others. In order to understand this, we need to understand what potential conflicts exist and how they are solved or suppressed We have already mentioned a couple conflicts earlier in the course Between queen and workers over sex ratios Remember, if workers are three times as related to sisters as to brothers, they should be selected to rear an excess of sisters, the queen is equally related to sons and daughters, so she's selected to favor equal investment in each.