Animal Relatives, Difficult Relations

Resemblance between two relatives – animal and plant breeding.

Animal Sociality: Bat Colonies Are Founded by Relatives

Most bat species breed communally, but how their colonies are founded is a mystery. A recent study suggests that the formation of a new colony starts with related females splitting off from an existing colony.

Relations between animal transgenesis and reproduction.

Transgenesis has become an essential tool for the study of gene expression mechanisms and functions. Transgenesis is also more and more used for biotechnological applications such as the study of human diseases, the adaptation of pig organs to humans, the production of pharmaceutical proteins in milk and likely in the future for the improvement of animal production. The use of transgenesis reli...

Immunologic Relations among Various Animal Collagens

By the use of complement fixation and in vivo immunofluorescence with cross-absorption studies it was shown that acid soluble collagens prepared from rat, mouse, guinea pig, chicken, carp, and man exhibit species specificity. Rat and mouse collagens were found to be indistinguishable and to cross-react with guinea pig collagen. Cross-reactions also occurred between the collagens of rat and man ...

Long-duration animal tracking in difficult lighting conditions

High-throughput analysis of animal behavior requires software to analyze videos. Such software typically depends on the experiments' being performed in good lighting conditions, but this ideal is difficult or impossible to achieve for certain classes of experiments. Here, we describe techniques that allow long-duration positional tracking in difficult lighting conditions with strong shadows or ...