This pop princess traveled to "Mars" and back in the futuristic 2000 video for "Oops!... I Did It Again".
Who is Britney Spears?
During mating season, swarms of this insect in the Great Smoky Mountains National park synchronize their flashes to guide females through the dark.
What are fireflies/lightning bugs?
Apollo's Chariot and Alpengeist.
What is Busch Gardens/Busch Gardens Williamsburg?
Don't let this sweet treat get stuck in your hair.
What is gum?
Native to the rainforests of Borneo and Sumatra, these highly intelligent, tree-dwelling great apes are critically endangered due to massive deforestation. 
What are orangutans?
This artist teamed up with Willie Nelson in 2003 to announce that "Beer for My Horses" was served.
Who is Toby Keith?
This creature doesn't make its own light; instead, its fur absorbs ultraviolet wavelengths and glows hot pink through a process called biofluorescence. 
What is a possum/an opossum?
E.T. Adventure and Harry Potter and the Escape from Gringotts.
What is Universal Studios/Universal Studios Florida?
When sewing, you pass your thread through this part of the needle.
What is eye?
The Javan, Sumatran, and Black are critically endangered species of this large 10-letter mammal.
What is a rhinoceros?
This St. Louis rapper was "goin' down, down, baby, yo' street in a Range Rover."
Who is Nelly?
The female of this species uses a glowing, bacteria-filled head lure called an esca to attract prey in the midnight zone.
What is the anglerfish?
Thunderhead and Tennessee Tornado.
What is Dollywood?
You might tell someone to ____ the line when they need to follow the rules.
What is toe?
Though they are more closely related to skunks, raccoons, and weasels, this colorfully-named species is on the endangered list due to habitat loss, poaching, and the exotic pet trade.
What are red pandas?
This Maryland band fronted by twin brothers had you singing about "Lifestyles of the Rich & Famous" in 2002.
Who is Good Charlotte?
This process occurs when a living organism mixes a chemical called luciferin with oxygen, resulting in a cold, chemical light.
What is bioluminescence?
Living with the Land and Expedition Everest.
What is Disney World?
Every generation has their own version of slang, but it's always a compliment to be called cool, groovy, or this other three-letter word.
What is hip?
Named for its sharp, bird-like beak, this critically endangered sea turtle is heavily poached for its beautifully patterned "tortoiseshell." 
What is the Hawksbill sea turtle?
This Bronx-born rapper teamed up with Ashanti for the 2002 hit collaboration "What's Luv?".
Who is Fat Joe?
Under ultraviolet light, the fur of this Australian egg-laying native absorbs light and gives off a blue-green glow.
What is the platypus?
Candymonium and Sooperdooperlooper.
What is Hersheypark?
A portion of a trip, journey, race, or tournament.
What is leg?
The largest flying land bird in North America, this Californian-named vulture is critically endangered due to lead poisoning from consuming bullet fragments in animal carcasses. 
What is the Condor/California Condor?