13 Jun '12, 12am

The Annotated Budak: Prima vēna by @budak

The Annotated Budak: Prima vēna by @budak

Five primary veins – costa, subcosta, radius, median, cubitus and anal – sprout from the backs of dragonflies to create a framework for flight with few peers in the arthropod world. The first terminates at the tip, near which a drop of pigment confers a stabilising weight to each stiff wing. The second ends where the leading edge hits a notch, its duties cut short by the need, perhaps, to strengthen the base of odonate propulsion. The third and fourth veins begin as conjoined twins but soon separate, with the radius giving rise to lines that support the distal margins of the wing and the median fronting a juncture of odd-shaped cells that betray the prehistories of these aerial hunters. The final two wind through the rear, with the anal vein running parallel to the cubital in damselflies but tracing a sock-shaped loop in advanced libellulids. Zygoterans, save the demoisell...

Full article: http://budak.blogs.com/the_annotated_budak/2012/06/prime_...

Tweets

The Annotated Budak: Monsters in our midst by @budak

The Annotated Budak: Monsters in our midst by @...

budak.blogs.com 13 Jun '12, 12am

Many of the colonies that build the superstructure of this living habitat consist of little monsters, zooids of coenosarc ...

The Annotated Budak: Desires of the flesh by @budak

The Annotated Budak: Desires of the flesh by @b...

budak.blogs.com 12 Jun '12, 1am

For all their minute charisma and bead-eyed charm, fiddler crabs , which occur in multitudes in the mangroves and soft fla...

The Annotated Budak: Piece of croack by @budak

The Annotated Budak: Piece of croack by @budak

budak.blogs.com 14 Jun '12, 2am

"There is a small rocky islet or group of rocks near the SE. Point of P. Ubin called S'kodo , from a fancied resemblance o...

The annotated budak: Sticking it in by @budak

The annotated budak: Sticking it in by @budak

budak.blogs.com 18 Jun '12, 1am

Some dragonflies choose spawning sites with little room for manouervre: swimming pools, water tanks, flooded roofs and fee...

The Annotated Budak: Shoots and leaves by @budak

The Annotated Budak: Shoots and leaves by @budak

budak.blogs.com 11 Jun '12, 1am

Many of the corals that survive, even thrive, in the intertidal zone form massive colonies resembling boulders, blocks or ...

The Annotated Budak: Buckle down by @budak

The Annotated Budak: Buckle down by @budak

budak.blogs.com 22 Jun '12, 11am

Parthenopids, with their triangular or hexagonal bodies, disarmingly long chelae and diminutive legs, are crabs that mock ...

The Annotated Budak: Gleam and clean by @budak

The Annotated Budak: Gleam and clean by @budak

budak.blogs.com 16 Jun '12, 12pm

A walker remarked to his companion as they passed me on the trail, "There's hardly any insects here". Earlier, a troop of ...

The Annotated Budak: 3+1 hoppers by @budak

The Annotated Budak: 3+1 hoppers by @budak

budak.blogs.com 25 Jun '12, 1am

As in Australia, where the subfamily has exploded and attained pestilential proportions, Sulawesi's acridoid fauna is domi...

The Annotated Budak: Of hairy crabs and healthy reefs by @budak

The Annotated Budak: Of hairy crabs and healthy...

budak.blogs.com 08 Jun '12, 7am

most familiar to intertidal explorers of local shores is a bumbling pile of legs attached to the scowl of a shell. Covered...

The Annotated Budak: Changi beached by @budak

The Annotated Budak: Changi beached by @budak

budak.blogs.com 06 Jun '12, 7am

Changi is no stronghold for asteroids, but the shore still harbours the odd Protoreaster as well as a sprinkling of armour...

The Annotated Budak: Ears apart by @budak

The Annotated Budak: Ears apart by @budak

budak.blogs.com 19 Jun '12, 4am

There is a fine, and often broken, line between snails and slugs, for both terms, though useful in the field, reveal littl...

The Annotated Budak: No soft spots by @budak

The Annotated Budak: No soft spots by @budak

budak.blogs.com 20 Jun '12, 3am

Despite the name, soft corals can be anything but. An attempt to palm the terminal clusters of a colony of nephtheids, spe...

The Annotated Budak: Mostly flat fishes by @budak

The Annotated Budak: Mostly flat fishes by @budak

budak.blogs.com 07 Jun '12, 8am

Lateral compression is a disadvantage on gentle strands where the sand threatens to swamp and suffocate every form of subs...

The Annotated Budak: A rambling naturalist by @budak

The Annotated Budak: A rambling naturalist by @...

budak.blogs.com 20 Jun '12, 3am

"The best and most promising shore lies west of the town, and is covered with loose stones, upon which grows abundantly a ...

The Annotated Budak: Excess baggage by @budak

The Annotated Budak: Excess baggage by @budak

budak.blogs.com 05 Jun '12, 8am

The final leg of this morning's survey of Punggol Beach , which spanned both sides of an old jetty that marks the long and...