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.
As with many raptors, females are larger than males. The bald eagle is Alaskaâs largest resident bird of prey with a wing span of up to 7.5 feet (2.3 m) and weight between 8 to 14 pounds (3.6 â 6.4 kg). Found only in North America, bald eagles are more abundant in Alaska than anywhere else in the United States. The Alaska population is estimated at 30,000 birds.