While some snakes spend the winter gathered in dens, they disperse widely the rest of the year, making it difficult to find food or mates. To survive, snakes have evolved the forked tongue. They use it to collect scent molecules, which they process within special organs, to discern whether they are nearing a food item or a deadly foe. Male snakes can also judge whether a female snake is of the same species, how ready she is to mate, and—from the intensity of the scents on each fork—in which direction she is moving.

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Florida Moves to Outlaw some Snake Species

To live in South Florida is to make peace with flying cockroach behemoths, brigades of lizards that dart across walls (bedroom and otherwise) and frogs the size of cannonballs that loiter on driveways.

But even in a state as hospitable as this one to scaly, slithering creatures, enough is enough. Florida has the highest number of nonnative amphibians and reptile species, according to a recent University of Florida study, and some of them are obliterating native Floridian creatures.

Florida’s Congressional delegation is now trying to yank the welcome mat from at least some of these “exotic” species, namely nine kinds of large constrictor snakes, which include the Burmese python, the boa constrictor and the green anaconda.

The 6 Venomous

Snakes of Florida

The 17 Most Common Non-Poisonous

Snakes of Florida

A federal Fish and Wildlife Service rule that would list the snakes as an “injurious species” has lingered for three years and still requires the approval of the Office and Management and Budget.

The snakes, particularly the large and powerful Burmese python, have proliferated in the Everglades, a trend that began in the 1980s but worsened after Hurricane Andrew destroyed several reptile houses in 1992. There are thousands of them in South Florida, although precise numbers are elusive. Today, the snakes are often sold by pet stores or online. They typically make it into the wild when they escape their homes or when owners release them because they can no longer care for them.

Hot day, warm sunset over Indian River Lagoon, December 31, 2016

Climate Change

Sends Snakes North

Up the Kissimmee Valley
and the Indian River Lagoon

South Florida has been invaded by nonnative wildlife, which disturbs the fragile ecosystem and preys on native species. But honestly, the 5,000,000+ humans do far more environmental damage than some exotic snakes. Regardless legislators argue that Florida is spending billions of dollars to restore the Everglades and if additional invasive snakes are allowed to establish themselves, the native wildlife will be decimated (as if the human population and Sugar farms around Lake Okeechobee weren't doing enough damage all by themselves).

Now paranoid legislators are fearing the snakes travels north up what's left of the Kissimmee River Valley and the Indian River Lagoon into Central Florida as climate change makes Central Florida winters balmy and a perfect temperature for exotic snakes. Reportedly pythons have been found in the wild as far north as Flagler and Marion Counties.

Legislators are not equally afraid of the non-stop bulldozing and development of the remaining wilds of Florida. In a generation there will be little remaining at the current pace of development.

Reticulated Python

Of the nine snakes on the list, Burmese pythons pose the largest threat. Impressive because of their length — some here grow to 16 feet — Burmese pythons can eat all manner of small animals like birds, other snakes and rodents. In some cases, though, they overindulge.

In October, a work crew tending to plants in the area spotted a 16-foot Burmese python on a little island not too far from Everglades National Park. The python bulged cartoonishly in its middle. Turns out it had eaten a 76-pound female deer, which was discovered by biologists during a necropsy. (The python was killed, as regulations allow.)

Another python was found dead with a six-foot alligator jutting out of its mouth. More serious, a 2-year-old girl in Oxford was strangled in her bed in 2009 by a pet Burmese python after it got loose from its terrarium.

The snakes, which favor the warmth and humidity of Central-South Florida, typically hide out in the brush. During mating season, which is occurring now, they often sun themselves on levies near canals.

Last year, Florida tightened the rules on six kinds of pythons and the Nile monitor lizard, making it against the law to buy them as pets. People who already owned them were allowed to keep them, with a permit. But only licensed reptile dealers, researchers and exhibitors can sell them out of state. The federal rule would ban the importation and interstate trade of these snakes altogether.

Florida wildlife officials have grown more adept at tracking and killing invaders in the past decade. The state now holds an amnesty day for pet owners who want to give up their snakes and giant lizards for adoption to other people or facilities that can care for them. There is a hot line to report sightings. And the Python Patrol, a team of snake-loving volunteers run by the Nature Conservancy, routinely scours the Everglades looking for pythons.

Some other species that may be loose in Florida . . .

Black Mamba

Named for the color of the inside of its mouth, the black mamba strikes repeatedly with venomous fangs. Widely considered the world’s deadliest snake, it continues to take human life in its native habitats in southern and eastern Africa, despite the development of antivenin. A resident of rocky hills and grasslands, the black mamba is also among the fastest snakes in the world, moving at up to 12.5 miles (20 kilometers) per hour.

Spectacled Cobra

The spectacled cobra, named for the eyeglass design on its flared hood (seen here), shares with the Russell's viper the infamy of causing more human deaths than any other snakes. Both are highly venomous and are found in the midst of vast populations of people in Southeast Asia. The spectacled cobra eats rats, poultry, and frogs and is known to enter houses when hunting.

Mozambique Spitting Cobra

The Mozambique spitting cobra can eject venom up to 8 feet (2.4 meters) away. It spits from any position, raised or on the ground, and often goes for the eyes. Untreated, its venom can cause blindness. Considered the most dangerous snake after the mamba, the spitting cobra sometimes feigns death to avoid molestation.

Anaconda

Awkward on land but agile in water, the anaconda lives in the swamps and tropical rain forests of South America. This green anaconda is the largest of several varieties; in fact, it is the largest snake in the world by weight, capable of reaching 550 pounds (250 kilograms) and measuring 12 inches (30 centimeters) in diameter. With flexible jaws and muscular bodies, these nonvenomous constrictors squeeze their prey to death and swallow it whole—whether it’s a bird, a wild pig, or a jaguar.

Desert Death Adder

Often colored in rusts and yellows to match its sand and rock surroundings, the desert death adder of western Australia lures prey by wiggling its thin black tail tip. When a lizard approaches, the snake strikes, delivering powerful venom. Australia is home to 17 of the world's most venomous snakes, including the death adder. Even so, snakes only cause one or two deaths a year there.

Green Tree Python

A green tree python, native to the rain forests of New Guinea and northeastern Australia, emerges from its shell. Most newborn snakes, which must free themselves from tough, leathery eggs, come armed with a single egg tooth, located on their head or snout. The egg tooth is used to tear through the shell and is discarded when the snake first sheds its skin. Thirty percent of snakes, however, give birth to live young. Egg-laying snakes usually live in warmer climates, which helps incubate their eggs.

King Cobra

King cobras avoid humans, but when cornered they can deliver enough venom in their bite to kill 20 people. They can also move forward while looking a 6-foot-tall (1.8-meter-tall) person in the eye, a third of their body raised up off the ground. Found in India, southern China, and Southeast Asia, king cobras are the only snakes in the world to build nests for their eggs.

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