OK, so- as far as the names go. Look closely, and you’ll notice that these Buns are shaped like animal or aquatic creatures. That answers that. But what ARE they?
Quoting RN, “These lines of confectioneries are sold by Japanese sweets maker Namikoshiken — they’re called the ‘Zoo’ (Dobutsuen) and ‘Aquarium’ (Suizokukan) series of sweet steamed Buns.”
They go for between $12 and $13, USD.
But that means nothing, since once again, you can’t get ‘em outside The Big J.
But if you’re in Japan- you’re in luck. As usual.