The big grey animals with sickle-shaped dorsal fins and prominent beaks are bottlenose dolphins. |
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Similarly, residents of Perth are likely to recognise the sickle-shaped leaves of their commonest snottygobble, Persoonia longifolia. |
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While normal erythrocytes have a life span of 120 days, sickle-shaped erythrocytes die within 10 to 20 days. |
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Its dorsal fin is backswept and it has long, sickle-shaped pectoral fins. |
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