The Dodo

Let’s talk about the dodo (Raphus cucullatus) which is a sort of tragic mascot of the animals driven to extinction by humankind. Dodos lived on Mauritius, an Island in the Indian Ocean to the east of Madagascar.  The first written record of dodos comes from Dutch sailors in 1598 and the last sighting of a live dodo was in 1662 (or maybe in the 1680s).  They are regarded as victims of the age of colonial exploration: Mauritius was located on the trade route which lead from Europe, around Africa, to the silks and spices of the East.  The poor dodos were at a convenient island in the hungry middle stretch.

The dodo has historically been regarded as clumsy, fat, and foolish—an animal which perhaps didn’t deserve to exist.  It now seems like this may be equivalent to what motorists say when they kill pedestrians and cyclists–which is to say an obviously self-serving calumny meant to disguise true culpability (although in fairness, colonial explorers weren’t particularly clear on whether other humans had any right to exist–to say nothing of flightless turkey-like birds which lived on an island stop over).  Ecologists and ornithologists now regard the dodo as admirably evolved to its island habitat. Standing 1 meter (3 ft) tall and (probably) weighing 10-17 kg (23–39 lb) the dodo lost the ability of flight, thanks to Mauritius’ lack of predators.  It had powerful legs which suggest it could run quite quickly, and it was not small (so perhaps the dodo took over the niche of some of those missing predators). The birds’ diet was predominantly fruit, whit it digested with the aid of large gizzard stones, although, if analogous creatures provide a clue, it probably also ate insects, small vertebrates and sundry bites of carrion, tender shoots, and eggs.  Speaking of eggs, it seems that the dodo, like many penguins, raised a single egg in a large nest.  They could live up to 20 years. Who really knows though? The people heading through Mauritius in the 17^th century were not there to study birds.  It has been speculated that the dodo may have suffered from a lack of fear of humans (which is not unknown in certain modern birds found on remote Pacific islands).  The dodo was also reputedly quite disgusting (to humans) to eat. It seems like the real culprit behind the extinction of the dodo were deforestation (the birds lived in Mauritius’ forests which were quickly leveled) and other invasive species such as rats and pigs which came to the island via boat.

During the 18th and 19th century, there was substantial controversy over what sort of bird a dodo actually is (was?).  Taxonomists, not unreasonably, suggested they were related to ostriches, rails, vultures, or albatrosses, however the real clue turned out to be in the Dodo’s leg bones which bore unmistakable similarities to those of pigeons.  Other details of facial anatomy and beak structure corroborated this: the dodo was a giant pigeon (although sadly no good DNA specimens now exist to find out further details or resurrect the extinct bird).  Though gone for more than 300 years the dodo clings to a strange ghost life as a symbol of a whimsical bygone era.  Lewis Carrol was apparently fond of them, and Alice in Wonderland greatly popularized the extinct fowl.  Additionally they are seen as a ominous warning for extinctions yet to come if humankind cannot cure its insatiable appetite or find a way to live in greater harmony with nature.  It is ironic that the great missing birds of yesteryear—the dodo and the passenger pigeon—are so closely related to the rock pigeon, the consummate omnipresent nuisance bird of human cities. Island species are often the first to go extinct: their specialized traits make them unable to compete with ruthless generalists.  Yet the dodo’s sadly comic appearance and the touching stories of its friendly openness to sailors do make it an ideal symbol of the danger faced by innumerable species in the Anthropocene.

Advertisement