Exodus (my series) Gen Pokemon.
Clockwise from bottom ; Spup, Orcanine and Narwoulf.
Sea Pod Pokemon.

Meshing together a Bernese Mountain hound and an Orca produces interesting results.
They travel in pods ranging from five to twenty individuals.
Monogamous, goes into estrus once a year and bears one offspring each time in a six-month gestation period. So it makes them rather rare (hence the living in groups mentality). Fiercely protective of very docile young. Occasionally used by the army as deep sea recon due to vast intelligence and loyalty compared to other sea-going Pokemon, though this practice has been highly debated since 'deep sea recon' might also include mine detonation.
Found in deep waters of Northern and extreme southern coasts, sometimes migrate to warmer equatorial waters to bear pups. Appear commonly in the the traditions and rituals of (Since this series takes place in the real world) the Maori, Coastal Phillipines and Nova Scotia as protectors of the Fishermen during stormy seasons.
Omnivorous

Type; Ice/Water
Size ; Spup (2 feet), Orcanine (5'11 feet), Narwoulf (12'5 feet)
Status; Vurnable-endangered (Semi-rare)