In 1862, when three dolphins were put in a freshwater pool in the London Zoo,
two died immediately. One lived for several weeks. As it was dying, a veterinarian was called in,
Dr. Buckland. Here he is shown giving the dolphin a drink of "spirits"
in an attempt to revive it.
From today's perspective, this seems horrible.
However, in context, we can see this as the first example of modern humans
attempting to treat them for illness and to care for them.