GRE: Animals

Verb abandon a hive or nest
African hybrid bees still retain less desirable behavioral traits for domestic beekeeping such as absconding in response to stress.
Adjective using or requiring great physical or mental effort
As they endure their daily arduous grind, the much-flogged beast of burden is paid 250 Indian rupees per day in Panchkula, Haryana.
Adjective having a lustrous or brilliant appearance
iridescent
Males have iridescent blue bodies and multicolored tail feathers ending with colorful 'eyes.' As the males strut, females choose their partners based on the beauty of the display.
Verb bite and grind with the teeth
Zebra make good dining companions for cattle, because they masticate the fibrous grasses that are unappetizing to cows, which in turn encourages the growth of fresh shoots.
Verb cause a feeling of interest or curiosity in somebody
pique
Dogs have been proven capable of sniffing out cancer, from its early stages to advanced malignancies. Researchers are piqued by what exactly the canines are detecting.
Verb straighten up feathers or make clean
This bird is not performing an ecstatic dance or some elaborate courtship ritual -- he is simply preening after feeding from the bottom of the shallow water.
Adjective adapted for grasping especially by wrapping around an object
With their disproportionately long limbs and prehensile tail, spider monkeys live in the upper layers of the rainforest and forage in the high canopy.
Adjective recovering readily
The resilient Bar-tailed Godwit, a land bird, flies over 7,000 miles nonstop from Alaska to New Zealand, with a little help from opportune winds.
Verb move with a smooth, wavelike motion
The snakes flatten their bodies in the air and undulate from side to side at high speed creating an aerodynamic effect that allows them to 'fly' hundreds of feet from tops of trees.
Adjective charming in a childlike or naive way
The winsome Dumbo octopus is named after the Disney character. “Dumbo” uses its lateral fins, which look like giant ears, to help propel itself across the ocean floor.