The term 'Young Otter' can be broken down into two crossword solutions: WHELP (5 letters) and PUP (3 letters). WHELP is a young animal, especially a young dog or otter, while PUP is a young mammal, such as a dog, fox, or seal. Both terms refer to a young otter, which is an aquatic mammal found in rivers, lakes, and oceans around the world. They are known for their playful nature and are often seen swimming and sliding on their bellies.