Complex sentence: Ucayali is the habitat of the grey bufeo or Bufeo Colorado (Amazon River Dolphins), giant otter, and the Amazonian Manatee, which are abundant in Pacaya Samiria National Reserve, close to Nauta.
Split into simpler sentences: Ucayali is the habitat of Bufeo Colorado, the grey bufeo (Amazon River Dolphins), giant otter and the Amazonian_Manatee. They are abundant in Pacaya Samiria National Reserve, close to Nauta.