Researchers have developed a new X-ray nanotomography microscope. Using their new system, they can reveal the structures on the smallest components of mammalian cells in three dimensions. For the ...

What happens below the cellular level when the heart contracts and relaxes has long been unexplored. Thanks to new ultra-high-resolution electron microscopy techniques, scientists can now watch the ...

Spermatozoal ultrastructure endorses other evidence that Ascaphus is the sister-group of all other anurans. Primitive (plesiomorphic) features of the sperm of Ascaphus, shared with those of urodeles ...

In isopods, the hepatopancreas has three major functions: (i) secretion and excretion of digestive enzymes, (ii) main site of food absorption, and (iii) main deposit of metabolic reserves (essentially ...