Dolphins

The Dolphins are the most evolved specie on Earth with them being far more powerful than, the other two main dominent species there who are the Great Ants and the Humans although, the Dolphins are still only inferior-class beings.

Powers
As inferior-class beings, the dolphins have gained sentience which is one of the basic criteria for entering the inferior-class itself however, they have evolved further than, the other beings on Earth. They haven't quite reached the normal-class yet though.

Through evolution, the Dolphins have gained special powers which would appear supernatural to some of the lesser species such as telepathy, telekinesis and pyrokinesis although, the latter isn't noticed quite so frequently due to the Dolphin's living in an aquatic environment.

Additionally, while some lesser species may rely on their technology for every little thing, the Dolphin's are capable of performing the tasks of a supercomputer using a single one of their minds with their actual computers being much more powerful than, that.

Technology
As expected from the most evolved species on Earth, it also has the most advanced technology where a mass-produced computer alone has more processing power than, all of the humans on Earth which means that their supercomputers are significantly more powerful than, this.

The computers which the Dolphins use are typically biological computers although, most of the tasks which they need done is usually done with their minds as they can function as computers along with allowing them to connect to the Dolphin's international network known as the Aquanet which can also, be accessed via the biological computers.

They also, have developed spaceships which are capable of interplanetary travel and have already colonised one of the outer gas giants in the solar system which hasn't been claimed by aliens yet which is mostly due to it's position and composition.