Mameshiba legit means "bean dog" in japanese and that's exactly what they are.the original one, edamame, is this

A little bean dog people find in their food.

Only catch is they tell either gross facts or depressing facts.

Like

"Did you know" how they start "20 million germs per second travel to the other and to you while kissing?"

I.had a plush of one.... I forgot where. I kinda wanna look now

Its a series if short videos and here are them all together.

I think they stopped making them cause the last one I saw was the baby mameshiba

But yeah

II had black bean and it's fact is "did you know, hippos sweat is pink?" (The little episode is kinda odd tho)

I CALL TIGER BEAN AND BLACK BEAN

also the scream one isn't one. Its fanmade