The following are a few pictures and video clips of tail
chasing dogs, used with permission of the dogs' owners. For
those who may not have seen a spinning Bull Terrier, these
images might give some idea what it looks like but it is hard to
convey how devastating this can be with just a few brief clips.
Without intervention, some of these dogs will spin and spin, so
rapidly they are almost a blur, for minutes or even hours until
they stumble and collapse from exhaustion. Both of the dogs
below lost their lives to their disorder.
The movie clips are in Windows media format (WMV) and you
will need Windows media player or another compatible viewer to
*These photos and videos are not to be distributed
elsewhere except by specific permission of the Bull Terrier
Neurological Disorder Resources site owner
and the owner of the dog!*
Dog # 1 - Tank
Tank was a white male Bull Terrier who suddenly began
tail-chasing at the age of about six months, seemingly triggered
by an allergic rash on his back legs and groin. Up until that
point his owner reports he had been a happy, well-adjusted dog,
given lots of mental stimulation and taken to 'doggie daycare'
five days a week. All that changed almost overnight and
the next four weeks became hell for Tank and his family; he no
longer responded to them and chased his tail nearly 24 hours a
day, mutilating his tail and genitals and injuring his legs and
foot pads from the friction of the nonstop spinning. He didn't
respond to medication, and finally, after he had been spinning
for nearly two days straight without sleeping, his family
couldn't stand to watch him suffer any longer and their
veterinarian released him from his agony.
Tank's owners had taken pictures and video of him for their
veterinarian before his death, and have graciously allowed this
material to be used on this site, in hopes that this will help
people understand what spinning is and why research to find the
cause is so important.
The first three show Tank spinning in his crate, and the
final one shows his owner trying to restrain him from spinning.
Note the stiff, rigid legs; his owner report that during this
time his body was completely rigid, almost as if he was in the
middle of a seizure of some sort.
Click on any of the images above to view a
- This is a ten-second video (no sound) of Tank tail chasing. His owner is trying to distract him with a toy and he briefly
looks up, then immediately goes back to spinning. Note
that, at one point, he bites his own back leg while trying to
get his tail.
Dog # 2 - Mojo
Mojo was a neutered male Bull Terrier,
fifteen months old at the time of the video clip below. He
was already showing signs of tail chasing when he came to his
new home at five and half months of age, later progressing to
not only serious spinning but also other strange behaviors such
as facial tics and air-snapping, and finally, serious seizures
in spite of treatment with clomipramine and phenobarbital. His
owners released him from his suffering at the age of 21
- An eighteen second clip of Mojo tail chasing. The morning
these videos were taken (there are three separate clips
combined) Mojo had been doing very well for several weeks and
had a sudden setback and began tail chasing again, at the time
this video was captured.