Phylogenetic analyses indicate that viviparity (live‐bearing reproduction) has originated
independently in more than 150 vertebrate lineages, including a minimum of 115 clades of …

Electroreception, the capacity to detect external underwater electric fields with specialised
receptors, is a phylogenetically widespread sensory modality in fishes and amphibians. In …

Interest in elasmobranch biodiversity and taxonomy has grown in recent years, catalyzed
primarily by four influences:(1) the large number of new species that have been described …

With our increasing ability for generating whole-genome sequences, comparative analysis
of whole genomes has become a powerful tool for understanding the structure, function, and …

Chondrichthyan fishes are probably the most successful of all fishes if success is measured
in terms of historical endurance. Indeed, they have survived the mass extinctions of the last …

Sharks are a diverse and ecologically important group, including some of the ocean's largest
predatory animals. Sharks are also commercially important, with many species suffering …

Actinopterygii (ray‐finned fishes) and E lasmobranchii (sharks, skates and rays) represent
more than half of today's vertebrate taxic diversity (approximately 33000 species) and form …

Chondrichthyes occupy a key position in the phylogeny of vertebrates. The complete
sequence of the mitochondrial genome (mitogenome) of four species of sharks and five …

Sharks occupy marine habitats ranging from shallow, inshore environments to pelagic, and
deepwaters, and thus provide a model system for testing how gross habitat differences have …

In addition to the selective importance of interspecific morphological variation, ontogenetic
morphological variation may reflect different selective regimes to which successive …