The city zoo of Dalin, China is interested in buying one or two orca
whales for their new water park.  Please tell me where to buy orcas in
the U.S. or anywhere in the world.  Are there any laws governing the
sales of these animals?  Thank you.

"...it is impossible to purchase an orca anywhere in the world (the
massive new tank at Nagoya Park Aquarium in Japan opened last fall
without any orcas, and Six Flags park in Ohio is unable to find a
companion for a solitary orca)..."

http://www.orcanetwork.org/captivity/culture.html

"...it's impossible to buy an orca on the market, as the Vancouver
Aquarium recently found out. They tried to buy one for three years
after the male Icelandic orca Finna died, but finally gave up and sent
Bjossa (captured along with Keiko in 1978, and also an excellent
candidate for release) to San Diego SeaWorld a few months ago. Angela
Nielsen, spokeswoman for the Vancouver Aquarium said 'Killer whales
are very social and very vocal and we couldn't bring another one here
so we wanted to send her where she could be with others of her own
kind.'

Deaths are outpacing births in captivity. Fifteen orcas have died in
tanks worldwide in just the past eight years, while only twelve were
born in captivity. The most recent capture in Japan in 1997 created
such an international uproar that no further captures are contemplated
by the marine park industry. SeaWorld, which owns almost half of all
captive orcas worldwide, is not about to sell one."

http://www.orcanetwork.org/captivity/updat4.html