From
https://help.eurostar.com/faq/uk-en/question/Can-I-take-my-pet-on-EurostarCan I take my pet on Eurostar?
Unfortunately, we can’t accept pets on board our services.
There are a number of considerations and implications for transporting pets and in the interests of the comfort and safety of our customers, crews and animals we don’t accept any pets on our services. Eurostar is not registered as a carrier of pets and therefore, we’re unfortunately unable to make any exceptions.
We do, however, allow guide and assistance dogs to travel with their owners and request that customers contact us at least 48 hours in advance of travel to make a request.
From
https://www.itv.com/news/westcountry/2023-11-05/swedish-bear-arrives-in-devon-via-eurostar-following-life-saving-rescueSwedish bear arrives at Devon wildlife park via Eurostar following life-saving rescue
A brown bear, that was due to be killed in Sweden, has arrived at a wildlife park in the UK▸ .
Wildwood Trust said Diego, the last surviving bear at a Sweden zoo, arrived at Wildwood Devon, near Exeter on the evening of 2 November.
He travelled to the UK via Eurostar, after plans to bring him over by ferry were amended in light of Storm Ciaran, the trust said.