Tag Archives: animals

Photography At Its Best

Wasteland with elephant - Nick Brandt

Ecological destruction, urbanization, species extinction, wildlife displacement and human poverty — a compelling and disturbing story told through a collection of eerily beautiful images. I have nothing more to say about Nick Brandt‘s latest collection of gorgeous photographs. Please take 15 minutes to visit his online exhibit titled Inherit the Dust or order the book — you’ll be moved and captivated.

Image: Wasteland with Elephant, 2015. Nick Brandt.

Cat in the (Hat) Box

google-search-cat

Cat owner? Ever pondered why your aloof, inscrutable feline friend loves boxes? Here are some answers courtesy of people who study these kinds of things.

From Wired:

Take heart feline enthusiasts. Your cat’s continued indifference toward her new Deluxe Scratch DJ Deck may be disappointing, but there is an object that’s pretty much guaranteed to pique her interest. That object, as the Internet has so thoroughly documented, is a box. Any box, really. Big boxes, small boxes, irregularly shaped boxes—it doesn’t matter. Place one on the ground, a chair, or a bookshelf and watch as Admiral Snuggles quickly commandeers it.

So what are we to make of the strange gravitational pull that empty Amazon packaging exerts on Felis sylvestris catus? Like many other really weird things cats do, science hasn’t fully cracked this particular feline mystery. There’s the obvious predation advantage a box affords: Cats are ambush predators, and boxes provide great hiding places to stalk prey from (and retreat to). But there’s clearly more going on here.

Thankfully, behavioral biologists and veterinarians have come up with a few other interesting explanations. In fact, when you look at all the evidence together, it could be that your cat may not just like boxes, he may need them.

The box-and-whisker plot

Understanding the feline mind is notoriously difficult. Cats, after all, tend not to be the easiest test subjects. Still, there’s a sizable amount of behavioral research on cats who are, well, used for other kinds of research (i.e., lab cats). These studies—many of which focused on environmental enrichment—have been taking place for more than 50 years and they make one thing abundantly clear: Your fuzzy companion derives comfort and security from enclosed spaces.

This is likely true for a number of reasons, but for cats in these often stressful situations, a box or some other type of separate enclosure (within the enclosures they’re already in) can have a profound impact on both their behavior and physiology.

EthologistClaudia Vinke of Utrecht University in the Netherlands is one of the latest researchers to study stress levels in shelter cats. Working with domestic cats in a Dutch animal shelter, Vinke provided hiding boxes for a group of newly arrived cats while depriving another group of them entirely. She found a significant difference in stress levels between cats that had the boxes and those that didn’t. In effect, the cats with boxes got used to their new surroundings faster, were far less stressed early on, and were more interested in interacting with humans.

Read the entire story here.

Image courtesy of Google Search.

Dolphins Use Names

From Wired:

For decades, scientists have been fascinated by dolphins’ so-called signature whistles: distinctive vocal patterns learned early and used throughout life. The purpose of these whistles is a matter of debate, but new research shows that dolphins respond selectively to recorded versions of their personal signatures, much as a person might react to someone calling their name.

Combined with earlier findings, the results “present the first case of naming in mammals, providing a clear parallel between dolphin and human communication,” said biologist Stephanie King of Scotland’s University of St. Andrews, an author of the new study.

Earlier research by Janik and King showed that bottlenose dolphins call each other’s signature whistles while temporarily restrained in nets, but questions had remained over how dolphins used them at sea, in their everyday lives. King’s new experiment, conducted with fellow St. Andrews biologist Vincent Janik and described July 22 in Proceedings of the National Academy of Sciences, involved wild bottlenose groups off Scotland’s eastern coast.

Janik and King recorded their signature whistles, then broadcast computer-synthesized versions through a hydrophone. They also played back recordings of unfamiliar signature whistles. The dolphins ignored signatures belonging to other individuals in their groups, as well as unfamiliar whistles.

To their own signatures, however, they usually whistled back, suggesting that dolphins may use the signatures to address one another.

The new findings are “clearly a landmark,” said biologist Shane Gero of Dalhousie University, whose own research suggests that sperm whales have names. “I think this study puts to bed the argument of whether signature whistles are truly signatures.”

Gero is especially interested in the different ways that dolphins responded to hearing their signature called. Sometimes they simply repeated their signature — a bit, perhaps, like hearing your name called and shouting back, “Yes, I’m here!” Some dolphins, however, followed their signatures with a long string of other whistles.

“It opens the door to syntax, to how and when it’s ‘appropriate’ to address one another,” said Gero, who wonders if the different response types might be related to social roles or status. Referring to each other by name suggests that dolphins may recall past experiences with other individual dolphins, Gero said.

“The concept of ‘relationship’ as we know it may be more relevant than just a sequence of independent selfish interactions,” said Gero. “We likely underestimate the complexity of their communication system, cognitive abilities, and the depth of meaning in their actions.”

King and Janik have also observed that dolphins often make their signature whistles when groups encounter one another, as if to announce exactly who is present.

To Peter Tyack, a Woods Hole Oceanographic Institution biologist who has previously studied dolphin signature whistle-copying, the new findings support the possiblity of dolphin names, but more experiments would help illuminate the meanings they attach to their signatures.

Read the entire article here.

Image: Bottlenose dolphin with young. Courtesy of Wikipedia.