Montreal, another AI hotbed, has Element AI, a co-founded by Yoshua Bengio, a specialist in deep learning-and newish labs opened by Facebook and Samsung.
So in 2017, Evans and colleagues went digging through a collection of dinosaur bones at the Royal Tyrrell Museum of Paleontology in Alberta-a hotbed of dinosaur fossils.
When he found it after more than a decade's searching off the Florida coast, a hotbed for treasure hunters, the state claimed ownership of its cargo of silver coins and emerald jewellery.
A new report, by Dick Simpson and his colleagues at the University of Chicago, documents the extent to which the state of Illinois and the city of Chicago have been hotbeds of corruption.
Islands worldwide tend to be hotbeds of evolution because the animals and plants that find themselves in islands are separated off from relatives on the mainland and so evolve in their own weird and wonderful ways.
This just goes to show how vulnerable Sinai is and really what a hotbed it has become for these regular attacks on security forces, again another security challenge, another security front for the army to have to deal with.