"The
entire family of a dead matriarch, including her young calf, were all gently
touching her body with their trunks, trying to lift her. The elephant herd were
all rumbling loudly. The calf was observed to be weeping and made sounds that
sounded like a scream, but then the entire herd fell incredibly silent. They
then began to throw leaves and dirt over the body and broke off tree branches
to cover her. They spent the next two days quietly standing over her body. They
sometimes had to leave to get water or food, but they would always return."
–Martin Meredith, elephant researcher.
Elephants investigating a fallen friend.
Photo from: http://news.nationalgeographic.com
The Think
Elephants International (TEI) research team is passionate about studying
elephant behavior and cognition. Not only is it very interesting to learn about
the cognitive capacity of the planet’s largest land mammal (and an endangered
one at that), but our work also serves to remind us that we are not the only
intelligent species on the planet.
In one of our
most exciting studies, Dr. Plotnik and his colleagues showed that Asian
elephants could recognize their own reflection in a mirror. Such a capacity
suggests that, like us, elephants may have a concept of Self. Could this
ability extend to a concept of loss or death as told by anecdotes of elephant
funerals and mourning rituals? Do elephants experience grief like we do?
Anecdotes like the excerpt above, in which an elephant stands by a deceased
relative for hours, and even stories of animals grieving the death of a human
(like well-known “elephant whisperer” Lawrence Anthony), certainly seem to
support this idea.
Do
elephants form funeral processions as this photo suggests?
Photo from: http://grist.files.wordpress.com
Little
empirical evidence exists to refute or uphold theories about animal
emotions—and elephant emotions in particular—because it is difficult to say for
sure what an animal may be thinking or feeling. However, one study importantly
showed that African elephants will investigate the bones of deceased
conspecifics (McComb et al. 2006). In fact, these elephants showed higher levels
of interest in elephant skulls and ivory than in natural objects or the skulls
of other mammals. Furthermore, elephants did not exhibit selective interest in
remains of relatives over unrelated individuals. Perhaps unsurprisingly, this
evidence suggests that there is something about elephant bones in particular
that intrigues herd members.
Do elephants
feel a special bond with one another that might allow them to develop a feeling
of grief when a friend dies? Damini, an elephant in an Indian Zoo, supposedly
starved herself to death after the tragic death of a close friend. In the wild,
elephants do live in very close-knit, complex social groups which may produce
extremely close relationships between herd members. Furthermore, there seems to
be an ever-growing list of anecdotes about targeted
helping, when an individual recognizes the needs of another and attempts to
help the individual, as well as mourning-type behavior in elephants. These
stories remind us that elephants may be even more similar to humans than we
ever thought.
Unfortunately,
emotions are difficult to objectively prove, as science can only measure what
we think are signs of emotions. For example, while elephants do technically
“weep” (since they do not have tear ducts they must lubricate their eyes by
secreting tears, thereby appearing to cry) and make “crying” sounds, we don’t
know that they do so as an emotional response. Nevertheless, anyone who has
spent significant time with an elephant will tell you that these individuals
seem to have complex emotional lives.
Normal
elephant tear secretions sometimes make elephants look like they are crying.
Photo by: Lisa Barrett
At TEI, we
are continually finding similar social behaviors between humans and elephants
in our investigation of convergent evolution (read about our cooperation study
here: http://bbc.in/1bCYbLF).
We may never be able to (accurately) think like an elephant to prove that they
experience grief like we do, but TEI’s research on how Asian elephants navigate
their world is vital in creating a more accurate representation of the elephant
mind. You can learn more about what it
means to “Think Elephants” here: http://bit.ly/1dLVBFM.
References
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