Bos grunniens
Yak
Mammal
Bothrops alternatus
Yarara
Reptile
Eunectes notaeus
Yellow Anaconda
Reptile
Naja nivea
Yellow Cobra
Reptile
Perca flavescens
Yellow Perch
Fish
Zebrasoma flavescens
Yellow Tang
Fish
Hydrophis platurus
Yellow-Bellied Sea Snake
Reptile
Megadyptes antipodes
Yellow-Eyed Penguin
Bird
Thunnus albacares
Yellowfin Tuna
Fish
Emberiza citrinella
Yellowhammer
Bird