Episode 336
In an unlikely turn of events, orcas and dolphins have been observed teaming up - to hunt and kill massive chinook salmon in the pacific. Given that orcas sometimes prey on dolphins, what’s going on? Despite the promising signs of cooperation between these two species, there may be something less heartwarming at play. We dig into the findings and discuss other surprising ways animals cooperate with each other.
From schizophrenia to bipolar disease, autism to OCD, many mental conditions are classified into different categories. But in the largest study of its kind, it’s been discovered that 14 different disorders fall into just five genetic groups. The finding could explain why people are often diagnosed with multiple psychiatric conditions at once - and bring comfort to those who are. Could it also help us find better treatments?
Exploding stars might be to thank for our very existence. It’s thought that supernovae may spew out the heavy elements required for the creation of planets and the emergence of life. A new model shows this is possible - and may help us figure out where to look next for alien life. Could this open up a new field of cosmic ecology? Plus, news of a strange new kind of star from the James Webb Telescope. Black hole stars may explain a running mystery about odd galaxies spotted by the telescope, called little red dots. 
Hosted by Rowan Hooper and Penny Sarchet, with guests Alec Luhn, Michael Le Page and Alex Wilkins.
To read more about these stories, visit <a href="https://www.newscientist.com/">https://www.newscientist.com/</a> Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices">megaphone.fm/adchoices</a>

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Orcas and dolphins are now hunting together; Genetic root of psychiatric conditions; Black hole stars and cosmic ecology

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