Name The Year: US Marines landed in Nicaragua to protect US citizens.?

Questions

In 1880, there were approximately 2 billion passenger pigeons in the United States. By 1914, the species was ----------?

City ---------- will eat just about anything, and often, it's the junk food that people offer them that they prefer, like Cracker Jack peanuts. Many naturalists have concluded that a peanut diet is harmful to squirrels: it seems to result in a weakening of eyesight and a thinning of the animal's pelt.?

The ---------- is one of the few land animals that does not need water to supplement its food.?

The bottle-nosed ---------- can dive to a depth of 3,000 feet in two minutes.?

---------- are voluntary breathers. For this reason, they sleep with only half of their brain at one time. The other half remains alert to regulate breathing. Resident whales typically remain near the surface, breathing and swimming in a pattern. When traveling together, resident pods have been observed to breathe in unison. Although it is not known why this occurs, it could be a way of helping the pod keep tabs on one another.?