Sentences with phrase «egg clutches in»

Other females may also choose to mate with the male frog and deposit egg clutches in the bamboo.

Not exact matches

They nest high in the canopy with a clutch size of one or two eggs.

This result confirms the discovery made in the 1990s of fossilized oviraptorosaurs stretched across their clutch, suggesting that they incubated their eggs.

Males that were allowed to use their foam fathered significantly more chicks in each clutch than foamless ones, suggesting it gives sperm a boost in the race to fertilise eggs (Journal of Experimental Biology, doi.org/nb6).

Archaeologists have unearthed a clutch of domesticated turkey eggs used as a ritual offering 1,500 years ago in Oaxaca, Mexico — some of the earliest evidence of turkey domestication.

A study in the journal Science looked at bones from dinosaurs found with clutches of eggs, and found that the caretakers appear to be male.

After hatching and dispersing across the world's oceans, only the female leatherbacks return to their natal beaches to lay clutches of eggs in the sand.

The Australian researchers isolated a specific DNA marker for femininity in the lizard before exposing three additional clutches of eggs to varying temperatures.

Karen M. Warkentin of Boston University and the Smithsonian Tropical Research Institute in Panama studied egg clutches located on the edge of Ocelot Pond in Panama to identify the circumstances under which embryos leave their clutch (the gelatinous mass deposited on a tree leaf) prematurely.

Additionally, unlike other octopus species in which females tend to die after producing a single clutch of eggs, female larger Pacific striped octopuses can lay many clutches of eggs continuously over the course of their adult lives.

If the eggs» bright colours were attracting predators, you would think that an egg was most likely to get eaten in the first few days after it is laid, before the clutch is completed and the male settles down to incubate them.

Females often share egg sites, laying their eggs together in a jumbled pile, and a female who spotted an existing clutch might well decide to add to it.

One Komodo, named Flora, lives at the Chester Zoo in England and has never been kept with a male; yet a few months ago she laid a clutch of 11 eggs, eight of which seem to be developing normally and may hatch as soon as January.

Earlier this year, a now deceased female named Sungai from the London Zoo laid a clutch of 22 eggs, four of which yielded normal male dragons — even though Sungai hadn't had a date in two and a half years.

In 2006, staff members at two zoos in the United Kingdom identified two female Komodo dragons that each laid an unusual clutch of eggIn 2006, staff members at two zoos in the United Kingdom identified two female Komodo dragons that each laid an unusual clutch of eggin the United Kingdom identified two female Komodo dragons that each laid an unusual clutch of eggs.

In the lab, they played those vibrations back to other clutches to find out what kinds of vibrations caused the eggs to hatch.

In the Gamboa lab, to pinpoint at what age the visual reflex appears, Pérez, the student researcher, breaks open eggs from a single clutch oneat a time using forceps.

«Octopus females only produce one clutch of eggs in their lives.

While crunching his data in the mid-1980s, Congdon made a startling discovery: The oldest female Blanding «sTurtles — more than 50 years old — had more egg clutches than youngerones, as well as more eggs per clutch.

In his decades of research at the E.S. George Reserve, Congdon found that the oldest female Blanding's turtles he captured had more egg clutches than the younger ones, as well as more eggs per clutch.

When there were no father frogs guarding the eggs, less than 30 per cent of the eggs in a clutch survived,» said Mr Seshadri.

But there seemed to be little correlation between that shape and nest type, nest location, or the number of young in a clutch — all previous proposed explanations for the shape of eggs.

By taking into account factors known to affect egg and clutch size in living bird species, the authors — who started their investigation last summer at the University of Lincoln's Riseholme campus — found that shared incubation was the ancestral incubation behaviour.

Females usually lay only two eggs, but in 1979, Merton found that if it loses a clutch, it will try again, so the birds have the potential to produce many more offspring than they actually do.

High on a rocky cliff in central Utah, paleontologists Lindsay Zanno and Bucky Gates found something rare — a large clutch of fossilized dinosaur eggs.

The temperature difference between summer and winter plays a significant role in the egg clutch size of birds

Cane toads produce many more eggs in a clutch than do any of the native frogs, and so a single clutch can result in many thousands of small black tadpoles in a pond.

A single clutch can contain more than 30,000 eggs — a lot more than in any native Australian frogs!

This doesn't achieve much in terms of controlling toad populations, because a single male can fertilize the clutches of many females — so the few lucky males that are left behind may have a pretty exciting life, and the number of fertilized eggs laid in that pond isn't reduced at all.

The temperature - difference mechanism for sex determination found in alligators and turtles depends on eggs being left in unattended nests, typically sun - warmed, with clutches large enough to have a marked temperature gradient across them.

In city driving, we had adequate boost without too much egging on, but for fast starts onto highways or freeways from a stop, we found it worked best to push it above 3,000 rpm before dropping the clutch, otherwise first gear feels a little anemic.

They will do this every 2 — 4 years and in a nesting year they may produce up to 9 clutches of eggs.

The five eggs in two remaining clutches at Malibu Lagoon and Dockweiler beach are «viable,» Dellith said, and surrounded with protective fencing.