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Not only primates and cetaceans, but also other long-lived mammals, like elephants, have females playing active (crucial) post-reproductive roles.
There is one behavioural pattern seen in group-living cetaceans that is individually maladaptive but could have arisen within a system of conformist traditions: mass stranding.
Studies of cetaceans have uncovered a number of patterns of behaviour and vocalizations, which some cetologists have ascribed to cultural processes.
Although the available evidence is consistent with the notion of culture in cetaceans, caution is warranted due to the many gaps in the data.
The latter seems to be a feature of dolphins and other cetaceans (exploited in oceanaria shows, where two performers leap and dive together).
Observations can provide additional insights into the products of culture that are important to cetaceans, as well as into the processes that might be involved.
Consequently, the implication in the target article that, because cetaceans have vocal traditions, they can learn other motor acts by imitation, is not convincing.
Culture may be an ancestral characteristic of terrestrial cetacean ancestors; not derived via marine variability, modern cetacean mobility, or any living cetacean social structure.
First, culture may be an ancestral state predating the cetacean split from their terrestrial ancestors.
Finally, the authors' account of the evolution of cetacean culture stresses that there are likely to be interesting interactions between migration and culture.
Such versatility raises the question of how widely social learning is used in less studied species of cetaceans.
This conclusion is relevant for the broader consideration of what amounts to culture in cetaceans.
Another difference occurs in the plates relating to the cetaceans.
Oddly, evidence is viewed differently when produced by cetaceans and birds.
An experiment could be as simple as introducing interesting artifacts into cetaceans' habitats and observing if (and how) different species interact with them.
