all of them are protein? I don't get it

Answer:
Yeah, I don't really know what's up with this. Maybe it's a glitch, You should tell your teacher about it if you haven't already.
Answer:
crocodile
Explanation:
The reason why crocodile is not the healthiest because its more closer to birds then anyone of the animals so there for people are not supposed to eat birds as you should know also your nor supposed to eat crocodile.