A Conservationist’s Guide to "Tiger King": Keep Wildlife in the Wild
By Zak Smith
It is pretty amazing that in this moment when the COVID-19 outbreak has much of the country holed up in their homes binging Netflix, the most watched show in America over the last few weeks has been focused on wildlife trade — which scientists believe is the source of the COVID-19 pandemic. Make no mistake: Tiger King: Murder, Mayhem and Madness is about wildlife trade and other aspects of wildlife exploitation, just as surely as the appearance of Ebola, SARS, MERS, avian flu and probably COVID-19 in humans is a result of wildlife exploitation. As a conservationist, this is one of the things I've been thinking about while watching Tiger King. Here are five more:
1. We are in a biodiversity crisis.
A million plant and animal species are threatened with extinction, many within decades, including tigers. The leading drivers of species decline and the impending collapse of ecosystems are ocean and land use changes (like converting wildlands into other uses, usually agricultural) and the direct exploitation of species (like taking animals out of the wild for eating, "medicinal" purposes, or status motives). It is for these exact reasons that there are more tigers in cages in the United States than there are in the wild. Developers continue to destroy tiger habitat and, in the not-so-distant past, hunters shot and killed tigers for sport or for trade in tiger products (and some still do illegally).
2. We must fundamentally change our relationship to nature.
Transformative change is necessary to limit species extinctions and secure human well-being (functioning ecosystems provide the clean air, clean water, carbon sequestration, flood control, healthy soils, pollination of plants and healthy coastal waters humans need to survive). Transformative change in this context means "a fundamental, system-wide reorganization across technological, economic, and social factors, including paradigms, goals, and values." We aren't going to halt the loss of species and strengthen ecosystems if we continue to treat wild plants and animals as expendable and renewable resources that we can use however we want. The tigers and other animals in Tiger King are exploited for profit and personal interests. Regardless of how they may be respected, coveted, or cared for, they are still treated as exploitable objects, which reinforces other destructive attitudes toward nature. A tiger cub is something to be held and photographed, a wetland is something to be filled and built upon, a rhino is something to be killed so we can use its horn for fake medicine. It's a view of nature as being in service to human wants, an attitude that is destroying our planet and one that must change.
3. Most wildlife trade should be banned and we should protect more wild places.
As noted above, ocean and land use changes and direct exploitation of species are causing an extinction crisis and threaten the ecosystems we depend on for human well-being. In line with our exploitative mindset, we've been stuck for centuries with economic and social patterns that allow unfettered use of wild places and wildlife until there's a problem. We need to flip that model on its head and only use wild places and wildlife if we can affirmatively demonstrate that such use won't contribute to the biodiversity and climate crisis. Tigers and the other animals appearing in Tiger King wouldn't be endangered today and wouldn't require "sanctuaries" if we hadn't destroyed their habitat and taken them from the wild for food, pets, "medicine" and trophies.
To set things right, we should ban most wildlife trade and protect more of the natural world. I say "most" wildlife trade to account for the exception of well-managed fisheries. NRDC has long sought to limit irresponsible wildlife trade (fighting for imperiled species internationally, supporting state efforts to limit trade, providing recommendations to China on revisions to its wildlife law), and now we must go further by banning most trade. In addition, we should support efforts to set aside vast swaths of ocean, land and terrestrial water to rebalance the functioning of our natural world. That's why NRDC and others support an initial call of protecting 30 percent of the world's oceans, lands and water areas by 2030. In China, we're protecting areas in a way that helps tigers by supporting the government's development of a National Park system, with targeted efforts on one of its pilot parks, the Northeast Tiger and Leopard National Park, which provides an important habitat for China's struggling populations of Amur tigers and leopards.
4. Not all sanctuaries are sanctuaries.
A lot of so-called sanctuaries are dumpster fires; they serve no purpose other than exploitation of animals for profit, and the animals suffer needlessly. It doesn't look like the Greater Wynnewood Exotic Animal Park — the park formerly owned by Joe Exotic — is a sanctuary, though it styles itself as being one, so the public may be confused. According to the International Fund for Animal Welfare, legitimate sanctuaries "do not breed, allow public contact with, sell, or otherwise exploit the animals that they take in." Legitimate sanctuaries can play an important role in saving imperiled species, promoting animal welfare, and educating the public. But those that do not meet strict standards are part of the problem, not the solution. The Global Federation of Animal Sanctuaries (GFAS) provides accreditation for sanctuaries that abide by a set of policies, including the maintenance of a nonprofit/noncommercial status. Big Cat Rescue, which is featured in the Tiger King series, "has held GFAS Accreditation status since 2009."
5. Changing our relationship to nature must include a just transition.
Throughout the world and in the United States, millions of people use nature in destructive ways for their livelihoods. I don't say this with judgement; often, people are just doing what we've always done — business as usual — which is unfortunately destroying the planet. Workers in the fossil fuel industry, fishermen in unsustainable fisheries, clearcutters in the tropics and boreal forests, and even people working at fake sanctuaries depend on the current system of exploiting nature to provide for themselves and their families. Unfortunately, it's at the expense of other people who depend on healthy, thriving ecosystems for their livelihoods and at the expense of human well-being overall. If we want to succeed in charting a new path for our planet, we must commit to making people and communities whole. The rampant exploitation appearing on the screen in Tiger King isn't just of wildlife — it is also of many desperate people brutalized by a political and economic system providing few options. We're not going to successfully realign our relationship with nature if we don't provide the necessary support for people and communities to transition to more sustainable, ethical means of providing for themselves and their families.
So, watch Tiger King and see if for you, like me, it informs the horror of the current moment, then maybe think about building a different world when we come out of this — a vibrant, natural world filled with wildlife and wonder, where we orient ourselves around preserving nature, not exploiting it, and embark on a new human journey.
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The ghoulishly named ogre-faced spider can "hear" with its legs and use that ability to catch insects flying behind it, the study published in Current Biology Thursday concluded.
"Spiders are sensitive to airborne sound," Cornell professor emeritus Dr. Charles Walcott, who was not involved with the study, told the Cornell Chronicle. "That's the big message really."
The net-casting, ogre-faced spider (Deinopis spinosa) has a unique hunting strategy, as study coauthor Cornell University postdoctoral researcher Jay Stafstrom explained in a video.
They hunt only at night using a special kind of web: an A-shaped frame made from non-sticky silk that supports a fuzzy rectangle that they hold with their front forelegs and use to trap prey.
They do this in two ways. In a maneuver called a "forward strike," they pounce down on prey moving beneath them on the ground. This is enabled by their large eyes — the biggest of any spider. These eyes give them 2,000 times the night vision that we have, Science explained.
But the spiders can also perform a move called the "backward strike," Stafstrom explained, in which they reach their legs behind them and catch insects flying through the air.
"So here comes a flying bug and somehow the spider gets information on the sound direction and its distance. The spiders time the 200-millisecond leap if the fly is within its capture zone – much like an over-the-shoulder catch. The spider gets its prey. They're accurate," coauthor Ronald Hoy, the D & D Joslovitz Merksamer Professor in the Department of Neurobiology and Behavior in the College of Arts and Sciences, told the Cornell Chronicle.
What the researchers wanted to understand was how the spiders could tell what was moving behind them when they have no ears.
It isn't a question of peripheral vision. In a 2016 study, the same team blindfolded the spiders and sent them out to hunt, Science explained. This prevented the spiders from making their forward strikes, but they were still able to catch prey using the backwards strike. The researchers thought the spiders were "hearing" their prey with the sensors on the tips of their legs. All spiders have these sensors, but scientists had previously thought they were only able to detect vibrations through surfaces, not sounds in the air.
To test how well the ogre-faced spiders could actually hear, the researchers conducted a two-part experiment.
First, they inserted electrodes into removed spider legs and into the brains of intact spiders. They put the spiders and the legs into a vibration-proof booth and played sounds from two meters (approximately 6.5 feet) away. The spiders and the legs responded to sounds from 100 hertz to 10,000 hertz.
Next, they played the five sounds that had triggered the biggest response to 25 spiders in the wild and 51 spiders in the lab. More than half the spiders did the "backward strike" move when they heard sounds that have a lower frequency similar to insect wing beats. When the higher frequency sounds were played, the spiders did not move. This suggests the higher frequencies may mimic the sounds of predators like birds.
University of Cincinnati spider behavioral ecologist George Uetz told Science that the results were a "surprise" that indicated science has much to learn about spiders as a whole. Because all spiders have these receptors on their legs, it is possible that all spiders can hear. This theory was first put forward by Walcott 60 years ago, but was dismissed at the time, according to the Cornell Chronicle. But studies of other spiders have turned up further evidence since. A 2016 study found that a kind of jumping spider can pick up sonic vibrations in the air.
"We don't know diddly about spiders," Uetz told Science. "They are much more complex than people ever thought they were."
Learning more provides scientists with an opportunity to study their sensory abilities in order to improve technology like bio-sensors, directional microphones and visual processing algorithms, Stafstrom told CNN.
"The point is any understudied, underappreciated group has fascinating lives, even a yucky spider, and we can learn something from it," he told CNN.
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In 'Road Map for a More Sustainable Future,' NY Regulator Tells Banks to Consider Climate Risks in Planning
By Brett Wilkins
Regulators in New York state announced Thursday that banks and other financial services companies are expected to plan and prepare for risks posed by the climate crisis.
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