Sentences with phrase «dorsal spines»

«Fish with venomous dorsal spines produce immediate and blinding pain.

This is a skeleton of a juvenile specimen of an Asian elephant with a stiff vertebral column, due to the long thorax with many ribs, the short lumbar ribless region (behind the thorax) and the dorsal spines that are all backward pointing.

«Orthacanthus was a three - metre - long xenacanth shark with a dorsal spine, an eel - like body, and tricusped teeth,» he said.

«Orthacanthus was a three - metre - long xenacanth shark with a dorsal spine, an eel - like body, and tricusped teeth,» he said.

Not exact matches

Charles Darwin thought they were relatives of mollusks; in the mid-1800s, however, Russian biologist Alexander Kowalevsky countered that the mobile tunicate larva, with its dorsal cartilaginous column resembling a spine, should be grouped with vertebrates and not clams and snails — even though the adult never develop a backbone.

They also developed larger eyes and the spines of their dorsal fins were longer.

The neurons that can be made with the new technique normally reside in clusters called dorsal root ganglia (DRG) along the outer spine.

The dorsal raise uses the lower back (erector spinae) and works the extensor muscles on either side of the spine.

In particular, fish with wide bodies or long dorsal and pectoral spines may become trapped inside an ornament.

For dogs and cats, the standard site for microchip placement is in the subcutaneous tissue along the dorsal midline (the spine) between the pet's shoulder blades.

«Frogfishes, members of the group known as anglerfishes, are usually provided with a «fishing pole,» tipped with a fleshy «bait,» located on the snout and derived from the first dorsal fin spine.