The question may be raised whether the larvae produced by artificial parthenogenesis can reach the mature stage. This question may be answered in the affirmative, since Delage has succeeded in raising several parthenogenetic sea-urchin larvae beyond the metamorphosis into the adult stage and since in all the experiments made by the writer the parthenogenetic plutei lived as long as the plutei produced from fertilised eggs.英文原著 · 《Darwin and Modern Science》
Only one species of this Old World family is found in America. It is a brown, much mottled bird, that creeps spirally around and around the trunks of trees in fall and winter, pecking at the larvae in the bark with its long, sharp bill, and doing its work with faithful exactness but little spirit. It uses its tail as a prop in climbing, like the woodpeckers. Brown Creeper.英文原著 · 《Bird Neighbors》
It frequents the border of swampy places and bushy fields. It is generally seen in the underbrush, picking about among the dead leaves for its steady diet of earthworms and larvae of insects, occasionally regaling itself with a few dropping berries and fruit.英文原著 · 《Bird Neighbors》
In the same meadows with the red-winged blackbirds, birds of another feather, but of the same family, nevertheless, may be found flocking together, hunting for worms and larvae, building their nests, and rearing their young very near each other with the truly social instinct of all their kin.英文原著 · 《Bird Neighbors》
Many years ago I observed in caterpillars of Smerinthus populi (the poplar hawk-moth), which also possess white oblique stripes, that certain individuals showed RED SPOTS above these stripes; these spots occurred only on certain segments, and never flowed together to form continuous stripes. In another species (Smerinthus tiliae) similar blood-red spots unite to form a line-like coloured seam in the last stage of larval life, while in S. ocellata rust-red spots appear in individual caterpillars, but more rarely than in S. Populi, and they show no tendency to flow together.英文原著 · 《Darwin and Modern Science》
The main points in our genealogical tree were clearly recognised by Darwin in the sixth chapter of the "Descent of Man". Lowly organised fishes, like the lancelet (Amphioxus), are descended from lower invertebrates resembling the larvae of an existing Tunicate (Appendicularia). From these primitive fishes were evolved higher fishes of the ganoid type and others of the type of Lepidosiren (Dipneusta). It is a very small step from these to the Amphibia:英文原著 · 《Darwin and Modern Science》
It's "panties." Ohh. Although some days it's "larva" or "chunks." Well, I will try to remember that.美剧 · 《Desperate Housewives》
On the other hand, I think sheldon Might be the larval form of his species, And someday he'll spin a cocoon and emerge two months later With moth wings and an exoskeleton.美剧 · 《The Big Bang Theory》
How long does it take to get from the larva stage-- - I fully understand what you're asking. - How long does it take?美剧 · 《The News Room》
Is because he knows that on the fourth day or the fifth day, those larvae will hatch is because he knows that on the fourth day or the fifth day, those larvae will hatch演讲 · 《A plant's-eye view ~ Michael Pollan》