12 | New Scientist | 24 October 2020
WITH a population that fell to just
25 individuals a few years ago,
every Hainan gibbon counts. So
when a 2014 landslide on China’s
Hainan Island forced the last
surviving members of the world’s
most endangered primate species
to make death-defying leaps across
a gap in the forest canopy,
conservationists were concerned.
“It was scary to watch – my heart
just popped out of my throat,” says
Bosco Chan at the Kadoorie Farm &
Botanic Garden in Hong Kong.
The researchers lent a hand by
stringing ropes between the trees
(pictured). The plan worked. Most of
the gibbons (Nomascus hainanus)
learned to use the ropes to cross the
15-metre gap. Some even balanced
on them like tightrope walkers.
Chan says rope bridges are now
proving useful in helping other
primates cross gaps between
fragmented habitats (Scientific
Reports, doi.org/fdnm). ❚ConservationIT WAS 2.30 am when Lea-Ann
Mears woke to the pain of a
4-metre-long scrub python
sinking its teeth into her posterior.
Mears knew the python was
near her home in northern
Queensland, Australia – in fact,
reptile biologist Daniel Natusch
had called the previous day to
warn her to lock doors and close
windows. Natusch, based at
Macquarie University in Sydney,
had been tracking the snake,
which had been implanted with
a radiotelemetry device, for the
previous five weeks as part of a
study to understand more about
the pythons’ use of land.
“They could kill the children,”
says Natusch. “So I said, ‘Look,it’s never going to happen, but
lock the kids’ doors and windows
at night.’ ” Mears had a toddler
and a 3-year-old in the house.
Mears did lock her children’s
bedroom, but because the weather
where she lives is uncomfortably
warm even at night, she left the
front door open to let in a draught
before retiring for the night.
After the snake attacked, Mears
managed to turn on the light.
“The snake was still latched onto
my butt,” she says. “I had to reach
down and put my hand in its
mouth and yank its teeth through
the flesh to get it off.”
She managed to lock the
python inside her kitchen.
Natusch arrived quickly andwatched the house while Mears
went to hospital to deal with her
minor injuries. Later, Natusch
took the snake 100 metres away
and set it free.
Natusch notes that the incident
raises the question of why a
5-kilogram snake would even
attempt to eat a 64-kilogram
woman it could never hope to
swallow. He tracked down a
few more examples of this
happening through news
clippings, suggesting Mears’s
experience wasn’t unique.Natusch suspects that the
pythons target such large prey
partly due to a harsh environment
in which they can go months or
even years without eating. At
night in the dark, this particular
snake may have just seen an
exposed leg and underestimated
the size of its prey (Austral Ecology,
DOI: 10.1111/aec.12956).
The same snake came back
10 months later and tried to eat
one of Mears’s 25-kilogram dogs.
It was in the process of strangling
the dog when Mears freed her pet.
“My theory is it’s a bloody tough
life out there in the bush,” says
Natusch. “These snakes need
to take chances.” ❚AnimalsSnake with tracking device attacks woman
Clare WilsonApe escape
Ropes helped gibbons at risk of jumping to extinction
KA
DOORIE^ FAR
M^ ANDBOTA
NICGARDENNews
“It’s a bloody tough life
out there in the bush.
These snakes need to
take chances” Joshua Rapp Learn