[Refplace]

In My current Supers setting I have a few very notable super animals.
One of the origins is a power seed about the sizeof a watermelon seed. When eaten it rewrites your DNA granting physical and mental enhancements. Animals tend to get smarter and more durable. Its not the most powerful origin but the most common one for animals.
Carnivores are unlikely too eat one,though if they eat a prey animal that just ate a seed before its gone to work it will work on them instead.
Also its inheritable maternally.

Known animals are a telekinetic killer whale, two giant wolves in Ireland (Fenris and Fenrir), a giant floating octopus, and a growing number of giant squid.