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Saturday, April 5, 2025

The bushmaster mystique

These lethal snakes pre­fer to leave you alone–if you'll let them

by

20150716

On a sim­mer­ing hot, op­pres­sive­ly hu­mid day in New York in late June I went to col­lect a copy of a book about a snake from the of­fices of Sky­horse Pub­lish­ing Inc on the 11th floor of an of­fice build­ing in down­town Man­hat­tan.

The book and the snake are both fas­ci­nat­ing, but even more in­ter­est­ing are the two men with­out whom the book would not ex­ist.

Dan Eather­ley is a zo­ol­o­gist, BBC nat­ur­al his­to­ry film­mak­er and the au­thor of Bush­mas­ter: Ray­mond Dit­mars and the Hunt for the World's Largest Viper.

And Dit­mars is the epony­mous her­petol­o­gist of the ti­tle–her­petol­ogy is the study of things that creep or crawl–whose ex­tra­or­di­nary life cap­ti­vat­ed Eather­ley and at one stage in the ear­ly 20th Cen­tu­ry most of the Unit­ed States of Amer­i­ca.

"He's great," said the pub­lish­ing ex­ec in the cramped of­fice space high above the packed, noisy streets of the city. "Each day I get an email from him say­ing, 'I did this, this and this and I con­tact­ed such and such a per­son...it's re­al­ly amaz­ing."

He was talk­ing about Eather­ley of course; not Dit­mars. Dit­mars died in 1942. Not from a snake bite or poi­son­ing but from pneu­mo­nia, a month short of his 66th birth­day.

When I in­ter­viewed Eather­ley, who re­traced Dit­mars' foot­steps to Trinidad in search of the elu­sive bush­mas­ter snake–known lo­cal­ly as the mapepire zanana–he was just as en­thu­si­as­tic as his pub­lish­er had de­scribed him. All the way through our in­ter­view his ex­pla­na­tions of ven­om cures, noc­tur­nal pre­da­tion and the adapt­ed sali­va of snakes dur­ing their evo­lu­tion (which be­gan 80 mil­lion years ago), he fizzes with an in­sa­tiable en­er­gy. The hall­mark of a true an­i­mal ob­ses­sive and an over­flow­ing fount of knowl­edge.

He's sit­ting at home in rur­al Corn­wall in south-west Eng­land. We can hear his daugh­ter play­ing hap­pi­ly in the back­ground as we talk and some­where in the house his wife is look­ing af­ter their new ba­by. Any tired­ness Eather­ley is suf­fer­ing from late night nap­py-chang­ing du­ties is coun­ter­act­ed by his ex­u­ber­ance about Dit­mars' life; and read­ing the book it isn't hard to see why.

Born in 1876, Dit­mars be­came fas­ci­nat­ed with an­i­mals from an ear­ly age and was ex­chang­ing snakes with oth­er her­petol­o­gists all over the world by the age of 12.

At the age of 18, while still liv­ing at his par­ents' house in The Bronx where he had cre­at­ed a dark­ened rep­tile house in the siz­able at­tic, Dit­mars be­gan send­ing and re­ceiv­ing snakes from an Eng­lish ex­pat liv­ing in Trinidad in what was then the British West In­dies.

"He was called Richard Richard­son-Mole, or RR Mole," says Eather­ley. "You'd be in­ter­est­ed in him ac­tu­al­ly be­cause he used to own a news­pa­per in Trinidad called The Mir­ror in the 1880s, 1890s."

I scur­ried to Google to in­ves­ti­gate this piece of jour­nal­is­tic his­to­ry at the ear­li­est op­por­tu­ni­ty and found in Be­lin­da Ed­mond­son's book Caribbean Mid­dle­brow: Leisure Cul­ture and the Mid­dle Class, a pas­sage which said that Mole had in­deed found­ed the "left­ist" Mir­ror in 1898. A pa­per which, ac­cord­ing to Ed­mond­son, showed "a vest­ed in­ter­est in lo­cal lit­er­a­ture" and "the black mid­dle class."

From a book by Hans EA Boos en­ti­tled The Snakes of Trinidad and To­ba­go, I gleaned that Mole had ar­rived in 1886 and quick­ly be­gan send­ing back snake spec­i­mens to the British Mu­se­um. Mole co-wrote a pa­per called Notes on Some Rep­tiles From Trinidad in a jour­nal called The Pro­ceed­ings of the Zo­o­log­i­cal So­ci­ety of Lon­don in 1891 and, in that same year, found­ed the Trinidad Field Nat­u­ral­ist's Club; an or­gan­i­sa­tion which still ex­ists to this day.

"Mole didn't re­al­ly know how old Dit­mars was," Eather­ley con­tin­ued, "and he just de­cid­ed to send him a box load of quite ven­omous snakes," in re­turn for the rat­tlesnakes the teenage Dit­mars sent him from New York and Con­necti­cut.

"Dit­mars came back from work at the Amer­i­can Mu­se­um of Nat­ur­al His­to­ry where he was do­ing a re­al­ly bor­ing job pin­ning out in­sects," Eather­ley says in his sooth­ing pro­fes­so­r­i­al man­ner.

"He found this crate and told his par­ents to stay down­stairs, opened up the box and there were bags of wrig­gling snakes in­side and he said the bush­mas­ter jumped out of the bag and ad­vanced on him. An ac­count of which he wrote up in his 1933 book Thrills of a Nat­u­ral­ist's Quest. Long since out of print, of course."

Af­ter that first en­counter with the largest of the vipers, Dit­mars didn't see one again for decades, un­til he had be­come a fair­ly suc­cess­ful writer and film­mak­er in the 1920s and 1930s and was able to fund sum­mer hol­i­days to Cen­tral Amer­i­ca and the Caribbean on cruise ships to places like Haiti, Cu­ba, Hon­duras and Pana­ma.

From 1931 on­wards, hear­ing news that en­gi­neers mak­ing ex­ca­va­tions around the Pana­ma Canal were un­cov­er­ing hun­dreds of snakes–in­clud­ing bush­mas­ters–as they cut in­to the vir­gin rain­for­est, Dit­mars made sev­er­al ex­pe­di­tions there to find the beloved snake, but every time he ar­rived, he found he had just missed the find­ing of a bush­mas­ter. And every time he left, it was the same sto­ry.

"One year, a few weeks be­fore he vis­it­ed Pana­ma, they found about 16 bush­mas­ters all just ly­ing out on the road where the for­est was be­ing de­stroyed for these dam works, and the snakes were run­ning out. But when he got there, he didn't have any luck at all..."

Which sounds a bit like Eather­ley's tra­vails when he fol­lowed in Dit­mars' foot­steps. Bush­mas­ters are snakes that seem to be found when they want to be found, not when you're look­ing for them.

By the 1930s, thanks to the pi­o­neer­ing na­ture films Dit­mars made for Path�, Dit­mars had achieved a lev­el of fame which meant his search­es (and fail­ures) would ap­pear as head­lines in Amer­i­can news­pa­pers.

Even­tu­al­ly in 1934 he reached Trinidad on a cruise and was just about to de­part for Guyana when he heard news that a bush­mas­ter had been found in the south near the oil­fields and tak­en to the Uni­ver­si­ty of the West In­dies–at the time a hum­ble agri­cul­tur­al col­lege.

"Ac­cord­ing to the sto­ry," Eather­ley told me, "these oil work­ers went in­to a hut and there was a black­out and when the lights came on there was a bush­mas­ter. And they were about to kill it but one of them knew Dit­mars want­ed one."

Six weeks af­ter Dit­mars got it home to the Bronx Zoo, where he had be­come the first cu­ra­tor of rep­tiles and de­vel­oped the zoo in­to a place two mil­lion peo­ple vis­it each year, the bush­mas­ter died.

In cap­tiv­i­ty, they nev­er last long. Their del­i­cate spines are of­ten dam­aged by the rough way they get caught. And most of those cap­tured have some kind of par­a­sites, of­ten worms, which do away with them fair­ly swift­ly.

In some ways it's a mir­a­cle that bush­mas­ters or oth­er sim­i­lar snakes are ever found alive in T&T, since the in­stinct of many peo­ple is to kill them on sight. When Eather­ley tells me how dead­ly bush­mas­ters can be, it's per­haps not sur­pris­ing that peo­ple want them dead. Even though they would much rather hu­mans left them alone and would nev­er bite a per­son if left undis­turbed, the fact is they are very ven­omous.

They typ­i­cal­ly grow up to six feet long (in the 19th-cen­tu­ry, 11-foot spec­i­mens used to be dis­cov­ered, but not any­more) and they can see in the dark with heat sen­sors. Their range is from Nicaragua down to Brazil and they gen­er­al­ly don't do much, on­ly eat­ing about once a week or once a fort­night due to their low me­tab­o­lism and cold-blood­ed­ness.

But if you do get bit­ten by a bush­mas­ter, Eather­ley ex­plains, "Your tis­sue dis­solves away, your blood ves­sels, cells and cap­il­lar­ies burst and every­thing all slosh­es about so you end up with quite a lot of tis­sue dam­age quite quick­ly. At the same time there's a neu­ro­tox­ic el­e­ment–like with black mam­bas in Africa � which paral­y­ses you and stops you breath­ing."

This is se­ri­ous stuff. But on the plus side, you've got a win­dow of a few hours to get hold of some an­ti-ven­om to treat the ef­fects.

And Dit­mars is the man to thank for the pro­lif­er­a­tion of an­ti-ven­om in the Amer­i­c­as. As a youth, a friend of his was bit­ten by a rat­tlesnake and died. Through­out the 1920s, Dit­mars would "milk" thou­sands of live snakes to cap­ture their ven­om in gourds, turn it in­to dried-out crys­tals and dis­trib­ute it as an an­ti­dote to snake bites.

So what drove Eather­ley to painstak­ing­ly re­search this man and come all the way to Trinidad (where the archives weren't of much use, be­ing large­ly in­com­plete), to write this book?

An ob­ses­sion with snakes?

"I'm not re­al­ly mas­sive­ly in­ter­est­ed in snakes," he laughs. "I did zo­ol­o­gy at Ox­ford and didn't know what I want­ed to be when I grew up. I still don't know. But I had a vague idea of go­ing to some trop­i­cal is­land study­ing an­i­mals."

In­stead he end­ed up mak­ing nat­ur­al his­to­ry pro­grammes–in­clud­ing a cou­ple with the leg­endary British nat­u­ral­ist Sir David At­ten­bor­ough–in the less ex­ot­ic city of Bris­tol.

I asked what Eather­ley thought of Trinidad–he stayed at Pax guest­house, where At­ten­bor­ough stays, near Tu­na­puna and St Au­gus­tine at the edge of the North­ern Range–and he told me that he liked the lush for­est but that parts of the coun­try's nat­ur­al en­vi­ron­ment felt like they had been "trashed."

He found that Sim­la, the for­mer gov­er­nor's res­i­dence now home to the William Beebe Trop­i­cal Re­search Sta­tion and part of the Asa Wright Na­ture Cen­tre, need­ed lots of main­te­nance work, and at the edge of the for­est he was aware of the con­stant pres­ence of trucks min­ing the quar­ry.

"They're just com­plete­ly cut­ting away the hill­side," he said.

But Eather­ley en­joyed his (ul­ti­mate­ly fruit­less) quest search­ing for snakes in Trinidad's wildest reach­es and the coun­try will al­ways hold some nos­tal­gic ap­peal as his in-laws, com­plete­ly co­in­ci­den­tal­ly, met in Trinidad while work­ing in the oil in­dus­try many years ago.

How like­ly is the av­er­age Tri­ni to ever see a snake like the bush­mas­ter? Not very.

"The minute snakes get big, they get no­ticed by hu­mans and are in­stant­ly killed. It's very hard to find a bush­mas­ter," as he knows on­ly too well.

While at a meet­ing of the T&T Field Nat­u­ral­ists Club, he found out that a bush­mas­ter had been found by a farmer just the day be­fore. His ex­cite­ment was damp­ened, how­ev­er, by the news that it had been in­stant­ly blud­geoned to death.


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