Nothing new in Japan. They're often misidentifying the gender of animals in zoos. I didn't know about the hippo, but I'm not surprised. The most recent of many, many cases in Japanese zoos.
Lion earlier this year (they became suspicious when the "male" lion didn't grow a mane )
https://mainichi.jp/english/articles/20240304/p2a/00m/0li/002000c
Panda in 2020 (same zoo got it wrong with a previous panda birth in 2005)
https://mainichi.jp/english/articles/20201222/p2a/00m/0na/009000c
"Male" barn owl suddenly lays an egg in 2021
https://mainichi.jp/english/articles/20210416/p2a/00m/0na/029000c
Clueless.
#251 - With now being the hottest time of the year, what better time to do a quiz about it? How much do you know? Enjoy the quiz folks and let us know how you get on.
And now for the answers...