Chromosphaera perkinsii is a single-celled species discovered in 2017 in marine sediments around Hawaii. The first signs of its presence on Earth have been dated at over a billion years, well before ...

The world is full of unusual unicellular organisms and microbes, many of which have not been discovered yet. In 2017, scientists identified a single-celled marine organism called Chromosphaera ...

In order for vertebrate embryos to develop their body axes, they require what is known as an embryonic signaling center. This ...

Images of the multicellular development of the ichthyosporean Chromosphaera perkinsii, a close cousin of animals. In red, the membranes and in blue the nuclei with their DNA. The image was obtained ...

Embryo development starts when a single egg cell is fertilized and starts dividing continuously. Initially a chaotic cluster, it gradually evolves into a highly organized structure. Scientists have ...

A new model for embryo research Unlike other common laboratory animals, such as mice, guinea pigs have a preimplantation development that is more comparable to that of humans in terms of timing and ...

Together with his student Hilde Mangold, the biologist Hans Spemann discovered the so-called »organiser« during embryonic development in 1924. In ...

In vitro embryo production (IVEP) in sheep and goats encompasses a sequence of biotechnological steps: recovery of oocytes, maturation of oocytes under controlled conditions, fertilisation with ...

In vitro embryo production (IVEP) in cattle encompasses a suite of technologies designed to recover oocytes from donor animals, mature and fertilise them under controlled laboratory conditions, and ...