My son has weird black balls in his poop. kinda looks like a tadpole. he's 5. should i take him in?

Tadpole poop: In near 20 years of seeing kids and parents, this is the first time I've heard of poop looking like tadpoles! If he is overall well, eating well, stools are regular without pain, no abdominal pain and growing well, I think there is nothing to be concerned about. Black tarry stools are a concern, indicative of a GI bleed, but small black tadpole poop is probably ok. Hope this helps!