France has banned the breeding of dolphins and killer whales in captivity.
The government has also banned the keeping of all whales, dolphins and porpoises in captivity, except for orcas and bottlenose dolphins that are already being kept in aquariums.
Under the new rules, direct contact between the animals and the public is now banned (such as swimming with dolphins) and pools need to be made much larger.
Parks and aquariums have six months to make some of the changes and three years to expand their pools.
We want to know whether you think the breeding of dolphins and killer whales should be banned globally. What do you think?