No More Monkey Business
Humans and monkeys exhibit similar behavior as they age.
Researchers suggest that this similar behavior is genetic for both
species.
Humans spend less time
monkeying around as they get older, and according to a study published
Thursday, so do monkeys.As anyone who has ever
hung out with a grandparent, observed a retiring parent, or grown old
themselves may know, many people get pickier with age.
Some go to the same
restaurants on the same days every week, some get cranky around too many
strangers and instead of playing outside with the grandkids, some watch TV
silently. While it’s pretty clear that monkeys aren’t humans — we’re distant
relatives, separated by 25 million years of evolution — monkeys too, tend to
become less social with age.
What Happened to Mr. Times New Roman?
Jackson filmmaker Sava Malachowski, who has
made several safety videos on topics as varied as avalanches and winter
driving, believes Helvetica Man will convey his message to most Yellowstone
visitors. Most visitors, but not all.
“If you string enough of them side by side,
someone might pay attention to them,” Malachowski said of the flyer. “They had
these posters for years and it didn’t stop the last guy from being gored.”
The origins of Helvetica Man stretch back to
Austrian philosopher Otto Neurath (1882-1945) who created easily decipherable
icons for international communication. His isotypes (International System of
Typographic Picture Education) took official hold in the U.S. when the federal
Department of Transportation looked to aid throngs of visitors celebrating the
country’s bicentennial in 1976. The American Institute of Graphic Arts, a trade
group, and others participated. Designers Ellen Lupton and J. Abbott Miller
nicknamed the figure Helvetica Man after a typeface that has a clean modern
look.
Brexit and the Environment
Despite being an issue that
knows no borders, affects all, and is of vital interest to future generations,
the environment was low on the agenda ahead of the United Kingdom's historic
vote to leave the European Union.
The short answer to what happens
next with pollution, wildlife, farming, green energy, climate change and more
is we don't know—we are in uncharted territory. But all the indications—from
the "red-tape" slashing desires of the Brexiters to the judgment of
environmental professionals—are that the protections for our environment will
get weaker.
The Brexit vote leaves it highly
uncertain which protections will remain in place and the prospect of improving
them seems remote. UKIP's Nigel Farage, the politician who did more than anyone
to force the EU referendum, doesn't even think climate change is a problem and
wants to scrap pollution limits on power stations.
Earlier legal action from the EU
forced the UK to clean up its sewage-strewn beaches, while many of the
protections for nature and wildlife across the nation stem from EU rules. Here
again, the people whose job it is to safeguard these wonderful places and
reverse the damage of the past think leaving the EU is a mistake: 66 percent
say there will be a lower level of legal protection for wildlife and habitats
against 30 percent who think it will improve.
The EU has also driven a
revolution in recycling and waste. What will happen to that, according to the
people who made it happen on the ground? Two-thirds of the professionals think
it will go into reverse, with 30 percent saying it will stay the same and just
4 percent thinking it will improve.
Small Space = Small Animals
Now, a group from
Aarhus University, Denmark, says they’ve put the subject at rest. The
researchers analyzed the size of living and extinct mammals from the last
130,000 years, or around the time humans began expanding and colonizing
islands. They found the island rule is not a myth, but an evolutionary reality.
Whether big or small,
both tactics come with innate advantages and disadvantages. Big creatures have
a wider food choice and tend to dominate other species. You won’t ever see a
mouse at the top of the food chain. Smaller creatures, on the other hand,
require fewer resources, have generally shorter breeding cycles, and can adapt
far quicker — all considerations very important in an island setting where
ecosystems are limited.
Evolutionary Similarities
A bird's feathers, a reptile's scales, and a
mammal's hairs may seem like very distinct features, but these skin appendages
may come from common origins, say scientists.
The mechanism behind the embryonic development
of feathers, reptilian scales, and hair is remarkably similar, according to a
paper published Friday in the journal Science Advances. This finding suggests
that these distinct appendages have their roots in a common ancestor of these
three diverse lineages.
A hair, scale, feather, or even a tooth,
grows out of an anatomical structure called a placode that forms in the top
layer of the skin. When the signal is sent to a particular location in the skin
to form a placode, the top layer of the skin begins to thicken in that place,
as columnar cells that divide more slowly than normal form.
Scientists had spotted these placodes
associated with feather and hair development in bird and mammal embryos, Michel
Milinkovitch, one of the study authors and an evolutionary geneticist at the
University of Geneva, tells the Monitor in an interview. But finding these
structures in scaly reptiles was proving more of a challenge.
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