Is it true that scientists think marine mammals descended from a wolf?

I don’t think so

no, that is just plain dumb

No.

First, the site you linked is not about biological evolution, but about feeding behaviors. The wolf in the diagram stands as terrestrial feeding example.

Then cetaceans actually descended from Eocene hoofed terrestrial carnivores.

Pakicetus (the "Pakistani whale") is an example: https://en.wikipedia.org/wiki/Pakicetus

If you are referring to the image I attach from the page to which you linked, no it does not show that whales evolved from wolves. You are completely mis-reading the image. It shows evolution from left to right on each line and not diagonally downwards to the right from the wolf.

What science program are you watching? No.

Nope.

Just the MAD SCIENTISTS...........😂😂😂😂

i thought they were closer related to a hippo than a wolf.

after looking at your link, i guess so. it appears mammals have evolved back to the water multiple times, and the time that created otters and seals and some whales is family to modern wolves, the time that involves dolphins and most whales is more closely related to hippos and cows.

No. Scientists think all mammals descended from marine creatures that came ashore,

nope.