FIRST DOWN. All progress in a football game is measured in yards. The offensive team tries to get as much yardage as it can to try and move closer to the opponent's end zone. Each time the offense gets the ball, it has four downs, or chances, in which to gain 10 yards.
The largest eagle species in the world is the Pithecophaga jefferyi or Philippine eagle. This species of eagle is on the critically endangered list due to the rapid decline in habitat, which is the tropical rainforest. Keep Learning.
3. Stellerâs sea eagle. One of the largest raptors overall, this bird is found in Russia and Japan. Females weigh in at up to 20 pounds, with a length of more than 40 inches and a wingspan of up to seven feet. It has the largest and most powerful beak of any eagle.