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It is almost October and the last flowers of the season are blooming in my garden. I blogged earlier about my roommate’s pale beige morning glories. Here are some picture of my morning glories, which I planted in the back yard. Look at the beautiful combination of purple and white! It really is like a “Carnival of Venice” (which was the name on the package) insomuch as a tiny circular tropical flower can resemble a wintertime holiday in an Italian city state. The second variety of morning glories which I planted climbed so high up a tree that they have almost vanished from sight, but you can still see how they got their name “Scarlett O’Hara” (hint: not just from toying with the hearts of various successful merchants and landowners).
The Amazon River is renowned for having the greatest diversity of catfish of any river—oh, and it is also the largest river in the world too, I guess. The river drains half of South America and its branches flows through many many different sorts of regions. Near Tena in Ecuador, the river’s tributaries flow through a karst landscape of sunken limestone caves, streams and springs. There, deep beneath the rainforest, scientists have discovered a catfish with a remarkable ability to climb walls—or perhaps I should say they have rediscovered a previously known fish and found out it has unexpected talents.
The cave-climbing catfish (photograph by Geoff Hoese)
A team of naturalists led by Geoff Hoese found the catfish in a subterranean waterway jauntily climbing up a sheer 3 meter (10 foot) stone wall with a thin rivulet running down it. Here is a link to a National Geographic article about the catfish—you can go there and watch a video of the catfish shimmying up and down water-slicked rocks. The scientists believe the fish is Chaetostoma microps, a member of the suckermouth armored catfish family (Loricariidae), a group of animals which Ferrebeekeeper has enthused about in past posts (although the fish’s identity remains unclear—since the team had no permit for taking specimens and left the creature unmolested still climbing its underground walls).
An illustration of Chaetostoma microps
Chaetostoma microps is not notably specialized for cave life—it still has pigment and eyes, and lacks the marked asceticism of other true underdwellers like the pink catfish Phreatobius cisternarum (which lives beneath the water table!) Chaetostoma microps feeds on algae—which is notably lacking from underground caves. So what exactly is the fish doing down there? And how/why did it evolve its remarkable ability to climb rocks without much water? The answers are unclear, but it seems reasonable to assume that a fish from the vertiginous yet cave-studded foothills of the Andes would need the ability to climb in order to maximize its habitat (and to prevent being sucked into an inescapable underground grotto). Maybe Chaetostoma microps is really a mountaineer catfish. Instead of leaping like salmon, it deals with its rocky treacherous home by suction, barbels, and indomitable spirit!
The Giant Ground Pangolin of Africa (Manis gigantea)
The pangolin is one of the most unusual and fascinating mammals of Africa and Asia. The magnificent creatures have unique strengths and gifts, but because of unhappy superstition (and gustatory whim) they are facing an uncertain future.
A climbing tree pangolin
Despite a superficial resemblance to anteaters and armadillos, pangolins are most closely related to the carnivora family (cats, dogs, weasels, seals, and so forth). The relationship is not unduly close: pangolins make up their own order of which there is one extant family (Manidae) and one genus (Manis). There are eight species of pangolins, each of which is sheathed in a virtually impregnable suit of keratin scales which act as armor. All pangolins can roll into pinecone-like balls leaving only the razor sharp edges of their scales to confront predators. Not only does the pangolin possess armor, every adult has formidable claws with which to burrow into termite mounds and root insects out of bark (or to utilize as a defensive weapon) as well as a gland capable of spraying a foul acid onto would-be predators. Additionally, while they may lack the uniquely acute mental equipment of the gnome-like echidna, pangolins are considered quite clever. They are gifted at avoiding traps and seem to evince real creativity in seeking out and consuming bugs, particularly ants and termites, which compromise a large portion of their diets. Many pangolins are adept climbers, capable of taking to the trees both to hunt and to escape danger. Tree pangolins even have prehensile tails with which they can dangle from branches. Other pangolins are great burrowers. In fact in Chinese myth they travel everywhere in a great underground network and their Cantonese name “Chun-shua-cap” means the creature that bores through the mountain.
A lion ineffectively tries to eat a balled-up pangolin (photo by Mark Sheridan-Johnson)
Alas, Chinese legends are not all so kind to chun-shua-cap. Although pangolins are gifted with impregnable armor, mighty claws, keen intelligence, skunk-like acid spray, dexterity, as well as great digging, swimming, and hiding skills, they have a relentless enemy more implacable than any lion or plague. South China’s burgeoning middle class hungers for them with insatiable rapacity. Ancient custom dictates that ingesting their scales somehow magically aids nursing mothers (which, aside from the placebo effect, is a complete fallacy). Additionally pangolins are a prestige food for the newly moneyed millions who do not know what to do with wealth and, like the Very Reverend William Buckland, desire to consume everything that lives. China has eaten its own pangolins and is quickly driving the remaining pangolins of South East Asia, Indonesia, and South Asia to extinction. Additionally, as Africa’s troubled nations become vassals to Chinese cash and commodities-grubbing (and as Africa’s tin-pot dictators abase themselves before China’s moral equivocation) the pangolin trade is starting to gobble-up Africa’s pangolins, which were already facing pressure from the bush-meat trade and deforestation. Pangolins reproduce slowly. Because of their diet and lifestyle they can’t be farmed. If China’s ever-growing demand for them is not curbed they will vanish from Earth forever.
A smuggled pangolin rescued by police
Chinese police, customs officers, and wildlife officials (and their counterparts in neighboring nations) have begun to strike back at the illegal trade in pangolins and other endangered species. But as long as Chinese high officialdom turns a (very) blind eye on consumption, the problem will linger. Come on China! You are always clamoring to be regarded as a truly great world power. I will acknowledge you as such as soon as you rescue the world’s pangolins (and maybe the rhinos, bears, elephants, and tigers while you are at it). Everyone has these wacky superstitions which get in the way of real greatness (just look at America’s checkered history) but saving the pangolins should be possible for a nation whose government possesses such absolute authority. Or will China’s rise merely present a list of needless extinctions and tacky plastic cities as its heritage to posterity?
A baby pangolin sheltering with its mother
ferrebeekeeper 