For many Americans, summertime features camping, hiking and trips to the beach, and fireworks.

This year, wild animals are adding a surprising, new element to the seasonal fun: Terror!

In Colorado, a teen camper woke up to the sound of crunching to find his head in the maw of a bear.

The noise was the sound of large teeth scraping against his skull, he told Denver ABC-affiliate KMGH. A black bear, the teen realized, was trying to pull him out of his sleeping bag by his head.

“It grabbed me like this and pulled me, and then it bit the back of my head and dragged me,” the teen, identified only by his first name, Dylan, told KMGH. “When it was dragging me, that was the slowest part. It felt like it went forever.”

Fellow staffers and campers were roused by the commotion and tried to scare the bear away as Dylan fought back. The bear dragged Dylan about 10 feet, then dropped him and walked away.

Dylan was taken to the hospital. His injuries weren’t life-threatening. Authorities are searching for the bear, which will likely be euthanized, according to the Associated Press.

In North Dakota, an Alaska man is recovering after being attacked by a bison while hiking in Theodore Roosevelt National Park.

Park official Eileen Andes said the 65-year-old hiker encountered the large animal on a trail after taking photos of a sunset. He tried to walk around the bison but didn’t provide a wide enough berth, the Minot Daily News reported.

The bison apparently threw the man into a bush, knocking him unconscious, Andes said. When the man regained consciousness, he was bleeding from a leg laceration but made his way to the trailhead. When he saw more bison, he climbed several feet up a butte.

“The guy kept yelling, ‘help, help, and help,’” said Christopher Velazquez, one of three airmen from Minor Airforce Base who were camping nearby and heard the man’s faint calls.

Ever since the blockbuster movie, Jaws, Americans are always a little leery of the ocean. This past week, a kayaker was attacked by a Great White in Monterey Bay in California. This attack was led to a 4-day ocean ban in the area.

On the other side of the country, a swimmer’s legs were bitten by a shark in Florida off the coast of a popular nude beach.

Miami-Dade Fire Rescue Lt. Felipe Lay said the unidentified man was swimming in the afternoon off Haulover Beach when he was attacked, according to WPLG-TV. Haulover Beach is 9 miles north of Miami Beach.

Miami-Dade Fire Fescue Ocean Rescue lifeguards said they became aware of a shark in the water and immediately alerted beachgoers to get out of the water. Officials said the shark was 4-to-5 feet long.

Dogs may be man’s best friend…but their cousins are a different story entirely. While a Nebraska family was watching fireworks, a coyote attempted to drag off their one-year-old.

A family gathered for fireworks reported that one of the coyotes attacked a 1-year-old boy, biting him in the back, and tried to drag him away.

The boy’s mother told reporters she screamed and grabbed her son, scaring the animal off. The boy suffered a pair of shallow punctures in his lower back and was treated and released at a hospital.

There is a sci-fi TV series called Zoo, which is based on a James Patterson novel in which scientists and investigators look into the the mysterious pandemic of violent animals attacks upon humans all over the world.

Perhaps fiction has become fact?