Photograph by Joel Sartore, National Geographic Photo Ark The earliest multicelled animals that survived the Precambrian fall into three main categories. The simplest of these soft-bodied ...

So what exactly were these highly diverse Precambrian creatures? Plants, animals, or of another kingdom entirely? Nearly all scientists today agree that they were soft-bodied marine-dwelling animals.

which allowed them to uncover these ancient organisms and their movement patterns. He commented, “It’s a remarkable find, as it places Ecdysozoans in the Precambrian Eon, supporting the idea ...

It has long been suspected that the sparseness of the pre-Cambrian fossil record reflects these two problems. First, organisms may not have sequestered and secreted much in the way of fossilizable ...

Earth formed and oxygen levels rose in the foundational years of the Precambrian. The productive Paleozoic era gave rise to hard-shelled organisms, vertebrates, amphibians, and reptiles.

"Animals, plants, seaweed, and foraminifera are all eukaryotes. We were interested in studying this foraminifera because it thrives in a very similar environment to Earth during the Precambrian ...

I am particularly interested in applying my work to Precambrian chemical sediments, which formed prior to the evolution of biomineralizing organisms. My research encompasses lab experiments, modeling, ...

"Animals, plants, seaweed, and foraminifera are all eukaryotes. We were interested in studying this foraminifera because it thrives in a very similar environment to Earth during the Precambrian ...

Most life on Earth relies on the sun’s energy for survival, but what about organisms in the deep sea that live beyond the ...