It’s Raining Iguanas In South Florida

passion4nature, iStock via Getty Images
passion4nature, iStock via Getty Images

Florida is known for its extreme weather, but a recent alert issued in Miami on Tuesday, January 21 was strange even for locals. As CNN reports, the National Weather Service's South Florida bureau warned of iguanas falling from the trees as temperatures approached freezing.

Thermometers rarely read below 50°F in South Florida, but this week temperatures dropped into the 40s and 30s. At higher latitudes, a chilly forecast means you should probably wear a coat, but in tropical regions, you may need to grab an umbrella as well to protect yourself from iguana showers.

The invasive reptile species is cold-blooded, which means its body temperature is dependent on its environment rather than self-regulated. Many iguanas never have to deal with cold snaps, but when temperatures do plummet, they have an adaptation that helps them survive. If it's colder than 50°F, the lizards become lethargic, and if it drops below 45°F, they enter a catatonic state. Their lungs still work, their heart still beats, but nonessential body functions shut down in order to conserve energy. The video below shows iguanas in this state during a cold Florida winter two years ago.

Those dodging falling iguanas can take comfort in the fact that the creatures aren't necessarily dead, even if they appear to be. But the clever survival trick only works for so long. After enduring near-freezing temperatures for eight hours or longer, dormant iguanas start to die. Fortunately for Miami residents of all species, temperatures there are expected to reach a high of 65°F later today.

[h/t CNN]

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Andrea Piacquadio / Pexels.com
Andrea Piacquadio / Pexels.com

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Do Dogs Get Headaches?

Even without raging benders, dogs might still get headaches.
Even without raging benders, dogs might still get headaches.
damedeeso/iStock via Getty Images

Like babies, dogs can be hard to read in the medical ailment department. Are they listless because they’re tired, or because they’re sick? What’s behind their whining? And can they suffer that most human of debilitating conditions, the headache?

Gizmodo polled several veterinarians and animal behavior specialists to find out, and the answer seems to be a resounding yes.

Although a dog can’t express discomfort in a specific way, particularly if it doesn’t involve limping, animal experts know that canines that have diagnosed brain tumors or encephalitis can also be observed to have a high heart rate, a sign of physical pain. According to Tim Bentley, an associate professor of veterinary neurology and neurosurgery at Purdue Veterinary Medicine, administering painkillers will bring a dog’s heart rate down. If signs of physical distress also decrease, a headache was likely involved.

Unfortunately, not all dogs may offer overt signals they’re feeling some brain pain. According to Adam Boyko, an associate professor of biomedical sciences at the Cornell University College of Veterinary Medicine, dogs instinctively try to mask pain to avoid showing weakness.

Ultimately, dogs have many of the same central neural pathways as humans, which can likely go awry in some of the same ways. But the kind of persistent headaches owing to head colds or hangovers are probably rare in dogs. And while it goes without saying, they definitely don't need any of your Advil.

[h/t Gizmodo]