Possible Clues:

• Shape of curve described by Moor in almost Arctic environment
• Knock back a shot with backspin, achieving a curve
• Wild boar blocking friend by curved path
• A high throw and a knock skyward will show this path
• Graph of the equation y = ax2 + bx + c
• A polar bear regularly jumping in an arc
• Conic section
• Satellite dish curve shape
• Symmetrical curve
• Trajectory of missile soldier shot high in air over area