Tag: "hatch" at biology news
Study shows lizard moms dress their children for success
... hormone affects the back patterns of lizards that hatch
from those eggs, creating either lengthwise stripes down their backs or bars stretching from side to side. Whether they get stripes or bars depends on the genes for other traits. "This is the first example in which exposure to the mother's hormone...
Post oak grasshoppers emerging
...ng, when post oak leaves begin to emerge, the eggs hatch
and the nymphs begin to climb trees to feed. They go through at least five developmental stages before becoming adults, all the while munching on leaves. Currently, they are still in the pre-adult stage, he said. The grasshoppers prefer post oaks...
US conservation efforts bring more marine turtles to UK
...marine turtles that visit Northern European waters hatch
in the Americas and can spend nearly four years travelling thousands of miles to British waters. Scientists do not know why some juvenile turtles make the journey to Northern Europe, but believe they may simply be driven by the North Atlantic current...
A new view on Lyme disease: Rodents hold the key to annual risk
...indicators of disease risk. I. scapularis larvae hatch
in midsummer and acquire infection after feeding on an infected mouse or other small animal. Larvae detach after several days of feeding, then molt into nymphs and enter a nearly year-long dormant stage. After another round of feeding, nymphs fall of...
UF scientists restore sight to chickens with blinding disease
...elop the injection procedure and figure out how to hatch
the eggs. By doing the injection early during development, we actually treat the cells before they become photoreceptors." Infants with LCA1 would receive an injection of the gene transfer agents directly into the eyeball during the first couple of...
Even fish don't swim well when they're young!
...hat affects other types of fish. "Many fish larvae hatch
without fully formed pectoral fins and all hatch
without a swimbladder, so similar problems could occur for them", predicts Müller. This conclusion ...
Vital ocean prey play active role in environment
...ater to spawn, where the embryos sink. The embryos hatch
into free-swimming larvae at depth, then swim upward over the course of several weeks. The larvae are at this stage dependent on microorganisms found on the underside of sea ice for food, and as they grow they drift with pack ice. After they metamorp...
African amphibians make extreme parental sacrifice: The skin off their backs
...ong---some lay yolky eggs and tend them until they hatch
but invest no energy in feeding the young after hatching; others bear live young that fend for themselves after birth. In those that bear live young, fetuses are equipped with specialized teeth---something like those of B. taitanus and S. annulatus-...
Scientists discover a genetic switch that links animal growth and cancer
...cell growth when food is absent. If these animals hatch
from their eggs without any source of nutrition, they are able to remain in a perpetually young state for a long time without growing. When they eventually find food they start growing and maturing into adults. The researchers discovered that this ju...
Thin tough skin, slow-growing gills protect larval Antarctic fish
...o testing with a nanoliter osmometer. Yet the fish hatch
into water at almost -2 degrees Celsius. "With all this ice around, there is no way they can prevent freezing," Cheng said. "At -2 degrees Celsius, internal fluids would freeze instantly and the baby fish would die." "This 0.7 of a degree Celsius is...
Embryos tell story of Earth's earliest animals
...egraded quickly. Likewise, soft-bodied larvae that hatch
from the egg-like fertilization envelope did not fossilize, even under reducing conditions. The scientists predict early animal fossils from 500 million years ago will be embryos encased in the fertilization envelope and will have been fossilized u...
Biologist Discovers What May Be World’s ‘Pickiest?Mates
... “A burrow of just the right size allows larvae to hatch
at the safest time, the peak outward nighttime flo...e burrows speed incubation, so cause the larvae to hatch
too early and miss the peak tides. This research provides one of the first examples of how choosy re...
Techniques available to detect soil that inhibits destructive soybean pest
...ase to protect hundreds of eggs while they mature, hatch
into juveniles and leave the cyst to further attack the plant roots. Swollen females can be seen with the naked eye, but worm-like juveniles and males can best be seen with a microscope. As nematodes steal nutrients from the roots, the plants are we...
Elusive salamanders have role in developing new sampling models
...ll. With winter rains, the ponds rise and the eggs hatch
in December, January and February. Larval development lasts through May. The larvae then undergo metamorphosis and leave the ponds as terrestrial juveniles. Juvenile and adult salamanders may move 400 or more yards from ponds and burrow in old crayfi...
A vaccine to kill tapeworm
... faeces of those carrying the adult form. The eggs hatch
in the intestine and the immature parasites, known...f a pig eats the eggs then, as in humans, the eggs hatch
in the intestine, burrow through the gut wall and travel to muscles, where they form cysticerci. The...
A whole lot of shaking goin' on triggers early hatching in red-eyed tree frogs
...left undisturbed. What cues prompt the embryos to hatch
early when shaken by a hungry reptile but not when...tch. Undisturbed, red-eyed tree frog eggs usually hatch
six to eight days after fertilization, but can hatch
up to 30 percent earlier if attacked by animals...