Daily Express - 07.08.2019

(coco) #1
Daily Express Wednesday, August 7, 2019 11

DX1ST

By Mark Waghorn

Surprise


Feeding time... A stand-off
when watched, above, but
gull swoops in, below, when
the researcher
looks away

Where seagulls stare...a long, hard


look can stop them snatching chips


STARING at seagulls stops them
stealing your chips, researchers
have found.
The scavenging birds are also
known for snatching ice cream out
of unsuspecting tourists’ hands.
But scientists in a coastal town
in Cornwall believe they have
found a simple solution – just look
them straight in the eyes.
Researchers put a bag of chips
on the ground as bait and recorded
how long it took herring gulls to
approach the tasty snack.
A total of 74 gulls were moni-
tored for the study which was
published in the Royal Society’s
Biology Letters.
Of the 74, just 27 gulls (36 per
cent) ended up approaching the
chips.
With a human watching, this
took on average 21 seconds longer
than when they looked away.
Madeleine Goumas, lead author,
said: “Gulls are often seen as
aggressive so it was interesting to
find most wouldn’t even come
near during our tests.”
Miss Goumas, from the Centre
for Ecology and Conservation at
Exeter University’s Penryn
Campus, added: “Of the gulls that
did approach, most took longer
when they were being watched.

“Some wouldn’t touch the food
at all, although others didn’t seem
to notice a human was staring at
them.
“We didn’t examine why indi-
vidual gulls were so different – it
might be because of differences in
‘personality’ and some might have
had positive experiences of being
fed by humans in the past.”
Senior author Dr Neeltje
Boogert said: “Gulls learn really
quickly, so if they manage to get
food from humans once, they
might look for more.
“We therefore advise people to
watch out for gulls approaching, as
they often take food from behind,
catching people by surprise.”
Herring gulls – the most com-
mon of Britain’s seagulls – are
renowned for stealing food.
Between 1969 and 2015, the
UK population fell by 60 per cent,
with plastic pollution blamed.

FFeedidingttiime AAstatnddoffoff

the researcher
looks away

Pictures: SWNS

PATIENTS could soon
monitor their blood
pressure by taking
video selfies, thanks to
a smartphone app.
The technology uses
artificial intelligence to
detect high blood
pressure after camera
sensors track changes
in blood flow.
In tests it was 95 per
cent accurate compared
with a traditional blood
pressure cuff.
High blood pressure
affects one in three
Britons and is a major
cause of heart attacks
and strokes.
The findings are in
the journal Circulation:
Cardiovascular Imaging.

App ‘spots


high blood


pressure’


Scientists recommend
chicken instead

Red meat ‘raises risk of


breast cancer in women’


SWAPPING red meat for poultry
could cut a woman’s risk of develop-
ing breast cancer.
Researchers have revealed that
gorging on beef, lamb, mutton and
pork makes women more likely to be
affected by the disease.
Those who ate the most red meat
had a 23 per cent higher chance of
developing breast cancer than those
who ate the least, according to a
study of 42,000 women.
Women who ate the most poultry
had a 15 per cent lower risk than
those who ate the least.
Study author Dr Dale Sandler, of
the National Institute of
Environmental Health Sciences in


the US, said: “Our study adds further
evidence that red meat consumption
may be associated with increased
risk of breast cancer whereas
poultry was associated with
decreased risk.
“While the mechanism
through which poultry con-
sumption decreases breast
cancer risk is not clear, our
study does provide evi-
dence that substituting

poultry for red meat may be a simple
change that can help reduce the inci-
dence of breast cancer.”
Some 1,536 cases of breast cancer
were diagnosed during the
study. Participants all had
a family history of breast
cancer and filled in sur-
veys about their eating
habits.
Those who ate
more meat tended to
be younger, consume
more total calo-
ries and were
more likely to
have smoked or
drunk alcohol.

Breast cancer is the most common
cancer in the UK, with 55,200 cases
diagnosed every year of which 23
per cent are preventable, according
to Cancer Research UK.
The charity’s health information
officer, Weilin Wu, said: “Research
hasn’t shown a link between eating
red meat and breast cancer risk
before, so this is intriguing but the
results don’t paint a clear or consist-
ent picture.
“This study looked at women with
a family history of breast cancer,
which may already put them at
higher risk, so we need research with
a wider range of people to better
understand the relationship.”

By Hanna Geissler
Health Reporter

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