.
| A
circa 1914 photo of a thylacine at the London Zoo's North Mammal House.
This image was included in a guide book to the zoo, published in 1932. |
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The usual gait of the thylacine was described by Richard Lydekker as a
slow pace. Ellis Troughton commented "He is not at all as fast as
a dog...when pursued, he breaks into a canter". In regard to locomotion,
there is no correlation at all between the thylacine and the wolf.
The placental wolf, with its proportionately longer legs, prefers to support
itself on the two legs of the same side of its body (=pace-like).
The thylacine however, most often touches down with the right forelimb
and the left hindlimb simultaneously, or with the left forelimb and the
right hindlimb together (cross gait). To keep its balance, an animal
with a long body and proportionately short limbs can obviously only support
itself in this manner.
Apart
from walking and a short gallop, bipedal hopping has also been mentioned.
It was stated by J. Grant in 1831 that "...though when he moves quickly,
he springs like a kangaroo, although not with so much speed". Another,
separate report from E. H. Mattingley would appear to verify this method
of locomotion. However, because the animal's anterior portion is
quite large, and its back legs are rather weak with a minimally extended
metatarsal area and short calcaneal (heel bone) process, some doubt is
placed upon such statements. Another topic of much debate regarded
whether the thylacine walks on its soles (which is suggested by the presence
of extended padding on the hindfoot) or whether it walks on its toes.
A film made in 1928 at the Hobart Zoo clearly shows a thylacine
resting
on its soles when adopting a bipedal posture. Also, Richard Lydekker
depicts a thylacine in his 1896 book that sets its entire plantar surface
in contact with the ground.
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"Sole-walking" is certainly not one of the animal's most often used means
of locomotion. It is more accurate to assume that this type of movement
is used in situations such as traversing thick underbrush and broken terrain.
In contrast, "toe-walking" is undoubtedly used preferentially when crossing
more open areas. The thylacine's raised heel definitely enables it
to run at higher speed when evading danger or pursuing prey. Ronald
Gunn commented on the incredible agility of a thylacine: In a small half-finished
house "he sprang from the floor to top of the walls, and from crossbeam
to crossbeam under the roof, like a cat.". The thylacine's unusual
run "with a constant slight crouching at the rear end", can also be seen
in the aforementioned film. |
.
| A
thylacine photographed at the Hobart Zoo (Beaumaris site) sometime prior
to 1921. This image was one of several taken
by Harry Burrell which may have inadvertently perpetuated the unfounded
notion that the thylacine posed a significant threat to domestic fowl.
Like the Burrell photo shown here,
this image has also been severely cropped in order to make the animal seem
as though it is in a wild setting. Compare it with the original. |
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When thylacine numbers were higher, the animal's tracks were seen frequently.
In some instances, the tracks are difficult for the untrained eye to distinguish
from those of a dog, especially in situations where the ground is hard
and the print is rather faint. The thylacine's front foot has a slightly
raised thumb which usually does not leave an impression except in very
soft ground or snow. A dog's print is narrower than that of a thylacine,
and the plantar pad much more triangular. The tracks of Tasmanian
devils are somewhat similar in form to those of a small thylacine, and
are sometimes mistaken for such. |