Joe Rogan Experience #2563 - Dan Richards · Aired Oct 8, 2026
Claim summary · not a verbatim quotation
Female dolphins are promiscuous as a strategy to prevent males from killing their cubs.
The finding
What the evidence shows
Bottlenose dolphins do mate with many partners, with females consorted by up to 13 males in a season. Males killing newborn calves is also documented in several toothed whale species. But a 2023 review says it is still unclear whether infanticidal males go on to father the mother's next calf. It also describes the 'promiscuity confuses paternity' idea as a hypothesis borrowed from land mammals, not a proven dolphin strategy. Saying this is the reason females do it states a debated theory as settled fact. A field study showing that dolphin females' multi-male mating lowers infanticide, or that it does not, would settle or flip this call.
Read the supporting source · par.nsf.gov ↗Quick answer & review status
Quick answer
Is it true that Female dolphins are promiscuous as a strategy to prevent males from killing their cubs?
It leaves out the other side. Bottlenose dolphins do mate with many partners, with females consorted by up to 13 males in a season. Males killing newborn calves is also documented in several toothed whale species. Joe Rogan said it (matched by voice) on Joe Rogan Experience #2563 - Dan Richards, aired Oct 8, 2026, at 4:58. The supporting source is par.nsf.gov, linked below.
The context belongs here.
No separately verified on-air correction is recorded for this check. That is not a claim that nobody corrected it.
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- One selected claim from the episode
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