Emu

Dromaius novaehollandiae

The second tallest bird on Earth

Numbers

Weight: 82 lbaverage for females, the heavier sex; males average 69 lb and the species ranges from 40 to 130 lb
Length: 58,5 inaverage for males from beak to tail; females reach 62 in, with a species range of 55 to 65 in
Height: 75 inlargest individuals; the species ranges from 59 to 75 in
Lifespan: 10 yearscaptivity data, the only record available in source material: not documented in the wild
Speed: 30 mphthanks to highly specialized pelvic musculature
Running stride: 9 ftwhen walking the stride is about 3 feet
Audible call: 1,2 miproduced by a tracheal sac over 12 inches long

its feathers have two shafts emerging from the same point, a unique structure that no other bird possesses.
it swallows rocks that can weigh up to one and a half ounces each, holding over one pound inside its stomach.
in urban environments it has been seen swallowing glass, marbles, car keys, jewelry, nuts, and metal bolts.
its booming call comes from a throat sac over twelve inches long and can be heard over a mile away.
it sleeps for seven hours a night, waking every ninety minutes to stand guard for ten to twenty minutes.
while sleeping it bends its neck into an S shape to look like a bush, camouflage that protects it from predators.
it can maintain a constant body temperature in conditions ranging from twenty-three to one hundred and thirteen degrees Fahrenheit.
its green eggs owe their color to biliverdin, weigh up to twenty-three ounces, and are half yolk.
two female emus competing for the same male can fight each other for up to five full hours continuously.
in 2009 the mainland population was estimated between six hundred thirty thousand and seven hundred twenty-five thousand birds.

The first one is the question printed in your book: here is the answer. The other four are extra.

Question 1 of 5★ this one is in your book

Who incubates the eggs?

Question 2 of 5

How fast can an emu run?

Question 3 of 5

Why does the emu swallow stones?

Question 4 of 5

What color are emu eggs?

Question 5 of 5

Which living bird is taller than the emu?

Experiment 1

Measure nine feet on the floor with a tape measure. That is the stride of a running emu. Try to clear that distance in a long jump.

Experiment 2

Weigh one and a half pounds of small pebbles in a bag. That is how much an emu can carry in its stomach to grind its food.

Experiment 3

Take a chicken egg and compare it with an emu egg, which is five inches long and weighs up to twenty-three ounces.