Wolves and Sheep in Fences (Logical Puzzles Series #10)

This puzzle I created for the practice of US Puzzle Championship 2009. Fences puzzle (also known as "Slither Links" or "Loop a Loop" ) is one of my favorite puzzles. This is a very nice variation on this puzzle type. This is my second puzzle of this type. This is an easy puzzle. However, my first puzzle of this type is even easier and is published in Mini Puzzles Series with the title Wolves and Sheep in Fences (Mini Puzzles Series #16) and this Wolves and Sheep in Fences puzzle I am publishing as the 10th puzzle in Logical Puzzles Series. Can you solve this puzzle?

Rules of Wolves and Sheep in Fences puzzle

Draw a single closed loop by connecting neighboring dots horizontally or vertically (but not diagonally). A numbered square indicates exactly how many of its edge segments are used by the path.

A square containing a sheep (white animal) must end up inside the loop. a square containing a wolf (grey animal) must end up outside the loop.