Pectoral fin morphology has been used to taxonomically classify species and hypotheses on the functional differences in shape are noted throughout the ... |
17 июн. 2024 г. · The emergence and subsequent evolution of pectoral fins is a key point in vertebrate evolution, as pectoral fins are dominant control ... |
Pectoral fins have other uses as well. They can be angled downward to turn or descend quickly. They can be used for display of social signals. But they cannot ... |
The image shows the positions of the fin types that are highly prized in trade: the first dorsal, paired pectoral fins and the lower lobe of the caudal fin. |
19 сент. 2019 г. · Pectoral fin lowering among sharks has habitually been interpreted as a threat display towards humans. A different form of such lowering, called 'pectoral ... |
Identifying the pectoral fin. Long, nearly straight trailing edge; Narrowly rounded apex. The dorsal surface is grey to greyish-brown. |
19 дек. 2016 г. · Pectoral fins originate behind the head and extend outwards. These fins are used for steering during swimming and help to provide the shark with ... |
| Novbeti > |
| Axtarisha Qayit Anarim.Az Anarim.Az Sayt Rehberliyi ile Elaqe Saytdan Istifade Qaydalari Anarim.Az 2004-2023 |