Sentences with phrase «years ago my periods began»

After I had my last daughter 6 years ago my periods began to change from 7 days to barely 3.

Not exact matches

About 600 million years ago, in the Ediacaran period, multicellular organisms began to appear in the oceans.

If the universe began several billion years ago and went through billions of years of development before any life was possible, one must ask the classical theist the point of this extended period of development.

We are living, I have argued, in a unique period of transition, marking a transformation as far reaching in importance as the leap that occurred when that biological man began to make history thousands of years ago.

Scientists think that an explosion of animal diversity and complexity began near the start of the Cambrian Period, about 541 million years ago.

Amy Barr and Robin Canup of the Southwest Research Institute in Boulder, Colorado, think they know why: the moons were pummelled to differing degrees by wayward comets during the «late heavy bombardment», a cataclysmic period that began 3.9 billion years ago.

However, while rangeomorphs were highly suited to their Ediacaran environment, conditions in the oceans continued to change and from about 541 million years ago the «Cambrian Explosion» began — a period of rapid evolutionary development when most major animal groups first appeared in the fossil record.

The Jurassic period is a major unit of the geologic timescale that extends from about 200 Ma (million years ago) at the end of the Triassic to 146 Ma at the beginning of the Cretaceous.

During Expedition 359, Eberli's team drilled seven holes along the Maldives Archipelago to collect sediments that hold records of past sea level and environmental changes during the Neogene, a geological time period that began 23 million years ago.

The Maya civilization began to emerge about 3,000 years ago, and reached its peak during the Classic Period, from about A.D. 250 - 900.

The Cambrian is a major division of the geologic timescale that begins about 542 Ma (million years ago) at the end of the Proterozoic eon and ended about 488.3 Ma with the beginning of the Ordovician period (ICS, 2004).

Biology, magnetism and the chemistry of isotopes are the markers geologists typically use to tell the tale of changeovers in deep time, whether the Ordovician period or the Anthropocene epoch (the latter just a small slice of the Quaternary period that began more than 2.5 million years ago and has its own golden spike in Sicily).

The antiquity of these creatures suggests two evolutionary scenarios, the scientists say: Either eurypterids diversified quickly during the early stages of the Ordovician period (which began about 485 million years ago), or their lineage, including yet - to - be-discovered ancestors and kin, evolved more slowly and originated even further back in time during the Cambrian period — possibly during the Cambrian explosion, a period of evolutionary diversification sometimes called «life's big bang,» which began about 542 million years ago.

Another bone of contention for the team concerns the boundary between the Cretaceous — the last age of the dinosaurs — and the Paleogene, the period that began 66 million years ago.

The period begins around 620 million years ago with the rapid end of

If you had visited Earth during the Triassic Period, which began with a mass extinction 250 million years ago (see «The Day Everything Died,» page 64), you would have encountered the ancestors of today's lizards, turtles, and alligators.

The late Proterozoic — the time period beginning less than a billion years ago following this remarkable chapter of sustained low levels of oxygen — was strikingly different, marked by extreme climatic events manifest in global - scale glaciation, indications of at least intervals of modern - like oxygen abundances, and the emergence and diversification of the earliest animals.

Jud is studying the change that began 140 million years ago in the Early Cretaceous period, when plant communities of ferns gave way to a world dominated by flowering plants.

At the dawn of the Cambrian period about 570 million years ago, multicellular organisms were just beginning to appear, largely in the oceans.

It lived at the beginning of the Jurassic Period (201 million years ago), at the time when south Wales was a coastal region like it is today.

Now the Greenland Ice - core Project team has found that the last interglacial period — between 115 000 and 125 000 years ago — was characterised by a series of cold periods, which began very suddenly and lasted for either decades or centuries (Nature, vol 364, p 203).

There are tantalizing hints of feasting among Paleolithic hunter - gatherers perhaps as early as 20,000 years ago, but the practice became common only during the Neolithic (early farming) period beginning about 10,000 years ago.

tyrannosaur A line of meat - eating dinosaurs that began during the late Jurassic Period, about 150 million years ago.

Dinosaurs are believed to have ruled the planet from the beginning of the Jurassic period about 201 million years ago until the end of the Cretaceous period some 66 million years ago, when a massive asteroid impact, led to the extinction of most dinosaur groups on Earth.

The theory of the Cambrian Explosion holds that, beginning some 545 million years ago, an explosion of diversity led to the appearance over a relatively short period of 5 million to 10 million years of a huge number of complex, multi-celled organisms.

The research project began two years ago with information gathered on 2585 women diagnosed with the disease during the period 1984 - 1993.

The current era (at least under present definitions), known as the Holocene, began about 11,700 years ago, and was marked by warming and large sea level rise coming out of a major cool period, the Younger Dryas.

study published June 25 by the Proceedings of the National Academy of Sciences, the Greenland ice core drifts notably from other records of Northern Hemisphere temperatures during the Younger Dryas, a period beginning nearly 13,000 years ago of cooling so abrupt it's believed to be unmatched since.

William Ruddiman has proposed the early anthropocene hypothesis, according to which the anthropocene era, as some people call the most recent period in the Earth's history when the activities of the human race first began to have a significant global impact on the Earth's climate and ecosystems, did not begin in the eighteenth century with the advent of the Industrial Era, but dates back to 8000 years ago, due to intense farming activities of our early agrarian ancestors.

Roughly 3.7 billion years ago, Jupiter and Saturn began a gravitational dance in which the orbital periods of the titans lined up, and for every orbit around the Sun Jupiter made, Saturn made two.

Cordain's theory is that the genes of modern humans are highly similar to those of people living in the Paleolithic Era (2.5 million to approximately 11,000 years ago)-- the period when men began hunting with tools and, yes, often sought shelter in caves.

Years ago, at the recommendation of my TCM (Traditional Chinese medicine) practitioner, I began using digestive bitters as a means to ease the digestive discomfort experienced during periods of prolonged travel.

The history of Scotland is known to have begun by the end of the last glacial period (in the paleolithic), roughly 10,000 years ago.

This family of loaches, sometimes called sting - loaches, is found in Eurasia and Morocco and has about 28 genera with about 236 species (Berra The evolution of tetrapods began about 400 million years ago in the Devonian Period with the earliest tetrapods evolved from lobe - finned fishes.

The evolution of tetrapods began about 400 million years ago in the Devonian Period with the earliest tetrapods evolved from lobe - finned fishes.

S.S. Rajamouli, the filmmaker dubbed «the Indian Ridley Scott», who cast a fly as the lead in his revenge actioner Eega, scored a box office smash with his period epic Baahubali: The Beginning two years ago.

Furthermore, according to the ancient Chinese calendar, «the Blue Light Period», during which kings governed the world began 6450 years ago.

About two years ago, when I began reading draft chapters of Facing History's new publication on the Reconstruction era in American history, I got to thinking back to how I learned about this period in high school in 1959 and in college, and also how I taught it to my students while teaching high school several years later in 1965.

The car has been owned for three total years during two different periods by the seller, most recently beginning a year ago.

I began writing a little more than seven years ago during a tremendously confusing and painful period of my life in which my mental health deteriorated rapidly over the course of a couple of weeks.

In the middle of the Cretaceous Period around 80 million years ago, New Zealand broke off from Gondwana and began its divergent evolution.

Apparently the Yucatan Platform and presumably the Ambergris Caye area was land 195 million years ago and between 195 and 140 million years ago (during the Jurassic Period) the area was slowly inundated by sea waters and sediments began to be deposited on the platform area.

The rise in sea level began during the Pleistocene period but increased more rapidly about 7000 years ago and stabilising about 6000 years before present time.

History buffs will also enjoy a visit to the Naveta des Tudons, a Bronze Age burial tomb that was erected about three thousand years ago at the beginning of the Talayotic period.

Years ago, Laem Ngop boomed for a brief period when tourists began coming to Koh Chang and passenger boats departed from the pier However, once the vehicle ferries arrived, foot passengers quickly began to use them instead and the village went back into hibernation.

Last glacial period began about 120,000 years ago and end about 15,000 years ago.

Abandoned by the Maya nearly 1,000 years ago for unknown reasons, Xunantunich was claimed by the jungle until archeologists in the colonial period began conducting excavations in the mid-1890s.

Tehrani's deanship begins at a difficult period in Cooper Union's history, in the still very shaky aftermath of the school's 2014 decision to begin charging tuition for the first time since its founding 156 years ago.

It was roughly 2,500 years ago that the Greeks of the Classical period began to become increasingly interested in how the human body moves in space and — more importantly — how to capture and represent that movement accurately in art.

«In other words, the rate of change is much greater than anything we've seen in the whole Holocene,» referring to the current geologic time period, which began around 11,500 years ago.