Genetic interaction between male mating strategy and sex ratio in a marine isopod

Article Abstract:

The genetics of the Paracerceis sculpta isopod crustacean, whereby three three different types of males, distinguishable by behavioural and morphological phentotypes, coexist, is investigated. It is suggested that the phosphoglucomutase (Pgm gene) is closely related to the single controlling genetic locus of the male phenotype. An autosomal gene and extrachromosomal factor and the primary sex determination loci interact causing a change in sex. The model suggest the control of polymorphism in male behaviour by mendelian segregation of alleles at the alternative mating strategy.

Research, Sexual behavior in animals, Animal sexual behavior

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Thumbs down to the sewer rat: the diseases carred by sewer rats have accounted for more human deaths than all the wars in history combined

Article Abstract:

The common sewer or brown rat is the one seen going through garbage other human waste. They will eat anything and are frequently carriers of disease. They are more likely to attack than other species of rats, especially when cornered.

Health aspects, Behavior, Environmental aspects, Communicable diseases, Disease transmission, Rattus norvegicus, Norway rat

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Slater peccadillos: if you aren't in South America, slaters are as close to armadillos as you can get

Article Abstract:

This article discusses the taxonomic classification, evolution and physiological aspects of the slater peccadillo. Topics include a description of its food habits, reproductive rate, and short life span.

United States, Identification and classification, Insects, Taxonomy (Biology), Evolution (Biology), Biology

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