Pfft. Hahaha.
This is absurd.
Does it still have internal ear structures? I don't think it can hear entirely through a layer of fat. A quick Internet search suggests dolphins hear using acoustic windows in their lower jaws, not purely through the "melon" organ of fat in their foreheads.

It's not using a melon, it's using what dolphins use but in a weird location. I'll clarify.

That baby is dangerously adorable. Also gives off trunko vibes with the white fur and such.

Approval Checklist:
Art:
Art Present?:y
Art clear?:y
Gen number?:y
All limbs shown?:y
Reasonably Comparable to Ancestor?:y
Realistic additions?:y

Name:
Binomial Taxonomic Name?:y
Creator?:y

Ancestor:
Listed?:y
What changes?:
External?: loss of ears, permanent curve in tail
Internal?: sound conducting fats and jaw tissues for hearing
Behavioral/Mental?: birthing on ice, molting coat all at once, dig ice burrows with tusks
Are Changes Realistic?:y
New Genus Needed?: y, new hearing

Habitat:
Type?:3
Flavor?:3
Connected?:y
Wildcard?:

Size:
Same as Ancestor?:n
Within range?:y
Exception?:

Support:
Same as Ancestor?:y
Does It Fit Habitat?:y
Reasonable changes (if any)?:
Other?:

Diet:
Same as Ancestor?:n
Transition Rule?:y
Reasonable changes (if any)?:y, scavenger added

Respiration:
Same as Ancestor?:y
Does It Fit Habitat?:y
Reasonable changes (if any)?:
Other?:

Thermoregulation:
Same as Ancestor?:y
Does It Fit Habitat?:y
Reasonable changes (if any)?:
Other?:

Reproduction:
Same as Ancestor?:y
Does It Fit Habitat?:y
Reasonable changes (if any)?:
Other?:

Description:
Length?: good
Capitalized correctly?:y
Replace/Split from ancestor?:split
Other?:

Opinion: Approved

Agreed