Platypump

Platypump is a Water-type Pokémon native to the Kulin region. It evolves into Plattox starting at level 18, which then evolves into Venotreme starting at Level 33. Alongside Tyroot and Serpyre, it is one of three Starter Pokémon available to new trainers at the beginning of Pokémon Azure and Crimson.

PokéDex Entries
Azure:"Nerve endings on the back of this Pokémon's hind legs give it the ability to test how clean and pure any body of water is."Crimson:"Many people still believe it is imaginary. It can test bodies of water for toxins using nerve endings on its hind legs."

Physical Description
Platypump is a small quadrupedal Pokémon with a similar physique to a platypus. Its overall colour is light blue, with a duller blue mask and spot on its back, dark blue hind feet and tail, a purple belly and tongue, and a midnight blue bill. It has a round head, with round tufts of fur lining its bottom of its face and on the top of its head, beady golden eyes, and a ducks bill with a bright tongue. Its body is round and stout, with not much of a neck. Its arms and feet have three digits on each paw, with its back paws being webbed. Its tail is long, thick, flat, and paddle-like.

Behaviours
The back of Platypump's hind legs have hidden nerves in them that can detect electromagnetic fields around them. They can use these electromagnetic fields to find prey and friends, test water for impurities, and even, allegedly, read minds. They are unsurprisingly adept swimmer but their walking patterns are unusual - rather than moving by placing one foot after the other, they have to swing their whole body around in order to walk. Like other starter Pokémon, they are prized for their intelligence and rarity, and are typically very friendly towards new people, with bonded individuals developing a lifelong loyalty to their trainers.

Although considered a domesticated Pokémon, wild and feral Platypump can be seen inhabiting clear waterways in the wet areas of Kulin. They are typically seen diving in waterways for food and sun baking themselves on riverbanks. However, they are being seen less and less due to the changing climate and resource depletion. Finding Platypump in any body of water will tell you it is clean and pure.