Climate Change Is Making It Hard for Bears to Hibernate Through the Winter

iStock
iStock

What was once a rare sight—a bear wandering outside its den before springtime—has become increasingly common, thanks to climate change. As The New York Times reports, warming temperatures are waking American black bears from hibernation earlier than ever, and in some cases, preventing them from settling down for the winter in the first place.

Hibernation is a vital part of the black bear's life cycle. When awake, a bear must consume at least 11 to 18 pounds of food per day to maintain a healthy body weight. Withdrawing for the winter allows it to survive the food scarcity that comes with the colder months.

But as climate change promotes certain extreme weather patterns in the western U.S., the region's black bear population has begun to act differently. Last year the Pine Nut Mountains in Nevada saw unusually high levels of snowfall, and the excess moisture produced an abundant pine nut crop. This past winter, snowfall in the area hit near-record lows, leaving the pine nuts exposed on the ground for a longer period. The prolonged access to food in the area meant some bears started hibernating later or just never got around to it.

Many of the bears that did eventually crawl into their dens were woken up ahead of schedule this year. According to a 2017 study, for every 1°C that minimum winter temperatures rise, bears hibernate six days fewer. In January 2018, temperatures in the Pine Nut Mountains reached 5.4°C above the 20th-century average for the region.

Some years bears emerge from hibernation during droughts, which are exacerbated by climate change, and food is hard to come by. When that's the case, bears may end up on private property, raiding people's trash cans and bird feeders and sometimes breaking into their homes. Fatal bear attacks on humans aren't common: The more likely scenario is that the so-called problem bear will be euthanized. Bear management groups will often try other strategies, like capture and release and aversive conditioning, before resorting to this option. Nonetheless, dozens of bears are euthanized by states each year.

Black bears aren't the only ursine species being forced to adapt to global warming. In the Arctic, polar bears are losing the sea ice they need to hunt marine mammals, and many of them are moving onto land in search of prey. Climate change is pushing both species of bears toward human-populated territory, which means conflicts between the bears and people will only increase from here.

[h/t The New York Times]

Therapy Puppy Provides Comfort to Grieving Families at North Carolina Funeral Home

AllenSphoto, iStock via Getty Images
AllenSphoto, iStock via Getty Images

Emotional support animals have become common sights at places like airports, and now the funeral industry is embracing their therapeutic benefits. As WGAL reports, Macon Funeral Home in North Carolina now has a Bernese mountain dog puppy to provide comfort to grieving clients.

Nine-week-old Mochi isn't a fully trained therapy dog yet, but she's already winning over visitors. Tori McKay, Macon's funeral office administrator, had dreamed of bringing a grief-support dog into the business for a decade. Shortly after her 30th birthday on January 4, she and her husband "decided that Mochi would make a wonderful addition to our family and this decade of our lives," she wrote on the funeral home's website.

McKay chose a Bernese mountain dog for the breed's affectionate personality, relaxed disposition, and successful history as an emotional support animal. Between ages 6 months to 1 year, Mochi will receive therapy dog training in Asheville. The plan is to eventually make her available to families upon request and bring her to nursing homes to meet with residents. Until then, the puppy is meeting guests in a more casual setting as she gets used to socializing with strangers.

"Stop by and meet her, she loves making new friends!" a post on the funeral home's Facebook page reads.

[h/t WGAL]

One of the World’s Most Dangerous Spiders Could Invade Homes after Australia's Recent Rainfall

Ian Waldie, Getty Images
Ian Waldie, Getty Images

While recent rainfall has been a welcome change in Australia after destructive bushfires caused a widespread crisis, it hasn’t come without an asterisk. According to the Australian Reptile Park, the wet and warm conditions have made Sydney funnel web spiders highly active—and the funnel web spider happens to be one of the most venomous arachnids on the planet.

In a video the park shared on Facebook, officials warn that the weather might cause a marked increase in the spiders' activity, as males cover territory in search of a mate. They might be found in shoes, in laundry, or in yards. Fortunately, Atrax robustus is easy to identify, with its shiny body providing a helpful visual cue to immediately begin walking in the other direction.

Male funnel webs are thought to have venom up to six times more dangerous than females and also tend to move around more, making human encounters with them more likely. Because they can’t climb smooth surfaces, funnel webs are also prone to burrowing in piled-up clothing or other hiding spaces, providing an unwelcome surprise for anyone looking to retrieve their discarded shirt or socks.

The funnel web is also aggressive, quick to attack when provoked, and packs a powerful enough bite to pierce shoes. After being bitten, pain, muscle spasms, and pulmonary edema follow. Victims should use a compression bandage and limb immobilization to compress surface tissue until they receive medical attention.

Though the species is believed to have caused 13 human deaths, there haven’t been any fatalities attributable to a funnel web bite since 1981. That’s due in large part to antivenom made from milked spiders, an advancement that saved the life of a 10-year-old boy, Matthew Mitchell, bitten by the spider in 2017. The spider was loitering in his shoe and bit him on the finger. After 12 vials of antivenom, Mitchell made a complete recovery.

The Australian Reptile Park is actually encouraging citizens to trap the spiders and bring them in to drop-off sites to aid in the antivenom production effort. They advise nudging the spider into a plastic or glass container with a spoon. Extreme caution should be exercised, but you knew that.

[h/t CNET]

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