Both sexes develop a sickle-shaped, pheasant-tail during the breeding season.
The sides of the animal were covered with knife-shaped scales, the edges of the belly had sickle-shaped scales.
Most dolphins are small to medium-sized animals with a well-developed beak and a central sickle-shaped dorsal fin curving backwards.
Their sickle-shaped wings are well adapted for high-speed flight.
The sickle-shaped blood cells also tend to abnormally stick together, causing obstruction of blood vessels.
Nildon cut the motor so we could watch their water ballet: again and again, their sickle-shaped fins sliced through the water, side by side.
They are slightly larger than swallows and have long sickle-shaped wings.
Active by day, adults are swift and ferocious predators that seize small prey with powerful sickle-shaped jaws.
I ask about the sickle-shaped wound on his forehead.
When tiny blood vessels in the eye become blocked with sickle-shaped cells, vision problems and even blindness can result.
On our way back, we spotted a pair of sickle-shaped fins cutting through the water.
First there's nothing, then a shadow of sea water takes shape in the gloom, a dark eye over a sickle-shaped mouth, and the shark swims slowly past my cage.
It is a hereditary form of anaemia occuring mainly in black people in which a large number of blood cells become sickle-shaped.
It has a sickle-shaped blade on the end of its tail, raised over its head like a scorpion.
The pectoral fins are narrow and sickle-shaped with a pointed tip.
The sickle-shaped lake is 395 miles long, up to 49 miles wide, and up to 5710 feet deep.
If sickle-shaped cells block a blood vessel in the brain, a stroke can result.
Just along the road is Emily Bay, the sickle-shaped main swimming beach, with inviting yellow sand.
MacArthur's landing point stands in the exact centre of a vast, sickle-shaped sweep of civilisations running from the north of Scotland to Gibraltar, or Shetland to the Azores.
We have a chart and know of course to find Ursa Major, then follow a line down to Regulus, a bright star at the foot of the sickle-shaped line of stars that forms the head of Leo.