The Diplodocus has been there a long time. It is actually a cast of an original in Pittsburgh, which was assembled in the Museum during 1905. The great philanthropist Andrew Carnegie presented the specimen to King Edward VII, who then handed it over to the Museum in person at a grand public occasion. Diplodocus was proudly in place when I first came to the Natural History Museum as a little boy in the 1950s, and it was still there when I retired in 2006. I am always glad to see it; not that I regard a constructed replica of an ancient fossil as an old friend, it is just consoling to pass the time of day with something that changes little in a mutable world.
But Diplodocus has changed, albeit rather subtly. When I was a youngster, the enormously long Diplodocus tail hung down at the rear end and almost trailed along the floor, its great number of extended vertebrae supported by a series of little props. This arrangement was not popular with the warders, as unscrupulous visitors would occasionally steal the last vertebra from the end of the tail. There was even a box of "spares" to make good the work of thieves so that the full backbone was restored by the time the doors opened the following day. Visitors today will see a rather different Diplodocus: the tail is elevated like an extended whip held well above the ground, supported on a brass crutch which has been somewhat cruelly compared with those often to be found in the paintings of Salvador Dalí; now the massive beast has an altogether more vigorous stance. The skeleton was remodelled after research indicated that the tail had a function as a counterbalance to the extraordinarily long neck at the opposite end of the body. Far from being a laggard, Diplodocus was an active animal, despite the smallness of its brain. Nowadays, all the huge sauropod dinosaurs in films such as Jurassic Park show the tail in this active position. Many exhibits in a natural history museum are not permanent in the way that sculptures or portraits are in an art gallery. Bones can be rehung in a more literal way than paintings.
Now animatronic dinosaurs flash their teeth and groan, and carry us back effectively to the Cretaceous period, a hundred million years ago. Small children shelter nervously behind the legs of their parents. "Don't worry," say the parents, "they aren't real." The kids do not always look convinced. The bones that caused such a sensation in Andrew Carnegie's time a century ago, and that still command attention in the main hall, are now sometimes considered a little too tame. There is, to my mind, still something eloquent about the Diplodocus specimen: not merely its size, but that it is the assembled evidence for part of a vanished world. All those glamorous animations and movie adventures rely ultimately on the bones. A museum is a place where the visitor can come to examine evidence, as well as to be diverted. Before the exhibitions started to tell stories, that was one of the main functions of a museum, and the evidence was laid out in ranks. There are still galleries in the Natural History Museum displaying minerals, the objects themselves- unadorned but for labels-a kind of museum of a museum, preserved in aspic from the days of such systematic rather than thematic exhibits. Few people now find their way to these galleries.
The public galleries take up much less than half of the space of the Natural History Museum. Tucked away, mostly out of view, there is a warren of corridors, obsolete galleries, offices, libraries and above all, collections. This is the natural habitat of the curator. It is where I have spent a large part of my life-indeed, the Natural History Museum provides a way of life as distinctive as that of a monastery. Most people in the world at large know very little about this unique habitat. This is the world I shall reveal.
I had been a natural historian for as long as I could remember and I had always wanted to work in a museum. When there was a "career day" at my school in west London I was foolish enough to ask the careers master, "How do you get into a museum?" The other boys chortled and guffawed and cried out, "Through the front door!" But I soon learned that it would not be that easy. Getting "into a museum" as a researcher or curator is a rather arduous business. A first degree must be taken in an appropriate subject, geology in my case, and this in turn followed by a Ph.D. in a speciality close to the area of research in the museum. When I applied for my job in 1970, this was enough, but today the demands are even greater. A researcher must have a "track record," which is a euphemism for lots of published scientific papers-that is, articles on research printed in prestigious scientific journals. He or she must also be described in glowing terms by any number of referees; and, most difficult of all, there must be the prospect of raising funds from the rather small number of public bodies that pay out for research. It is a tall order. Even so, the most important qualification remains what it always was: a fascination and love for natural history. There is no other job quite like it.
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