There are huge differences in species numbers among the major branches of the tree of life. Some groups of organisms have many species, while others have few. For example, animals, plants and fungi each have over 100,000 ...
Evolution
Jul 29, 2021
2
346
Researchers from Osaka University have found that the attachment of a ubiquitin molecule to a protein called PCNA at the lysine 107 position causes gross chromosomal rearrangements. This lysine is located where two PCNA molecules ...
Cell & Microbiology
Jul 22, 2021
0
12
Bdelloid rotifers are multicellular animals so small you need a microscope to see them. Despite their size, they're known for being tough, capable of surviving through drying, freezing, starvation, and low oxygen. Now, researchers ...
Earth Sciences
Jun 7, 2021
0
6114
Scientists have long thought that there was a direct connection between the rise in atmospheric oxygen, which started with the Great Oxygenation Event 2.5 billion years ago, and the rise of large, complex multicellular organisms.
Plants & Animals
May 17, 2021
1
30
How do we become a complex, integrated multicellular organism from a single cell?
Cell & Microbiology
Apr 5, 2021
0
85
The transition from single-cell to multicellular organisms was a major step in the evolution of complex life forms. Multicellular organisms arose hundreds of millions of years ago, but the forces underlying this event remain ...
Evolution
Feb 24, 2021
0
42
Modern animals—including humans—are stunningly complex organisms made of many billions of cells that work together. These complex multicellular organisms evolved from much simpler organisms, and those, in turn, evolved ...
Cell & Microbiology
Oct 23, 2020
0
281
New research by an international team of chemists describes a new type of artificial cell that can communicate with other cells within the body—with potential applications in the field of smart pharmaceuticals.
Cell & Microbiology
Sep 21, 2020
0
536
A fundamental question in biology is how individual cells within a multicellular organism interact to coordinate diverse processes.
Cell & Microbiology
Jun 23, 2020
0
318
From bacteria-made insulin that obviates the use of animal pancreases to a better understanding of infectious diseases and improved treatments, genetic engineering of bacteria has redefined modern medicine. Yet, serious limitations ...
Biotechnology
May 29, 2020
0
54
