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Some cataracts, like incipient cataracts, affect vision to a small degree and do not always warrant surgery. However, continuous monitoring of any progression is necessary to assess the possibility of further treatment. When a cataract is deemed likely to progress, treatment is then recommended. [3]
In mammalian oral anatomy, the canine teeth, also called cuspids, dogteeth, eye teeth, vampire teeth, or fangs, are the relatively long, pointed teeth. In the context of the upper jaw, they are also known as fangs. They can appear more flattened, however, causing them to resemble incisors and leading them to be called incisiform. They developed ...
The dusky smooth-hound (Mustelus canis), also called the smooth dogfish or the dog shark, is a species of houndshark in the family Triakidae. [1] This shark is an olive grey or brown in color, and may have shades of yellow or grayish white. Females live to 16 years and males have a lifespan of 10 years.
Dogfish sharks use their strong jaw and sharp teeth to consume their prey. The spiny dogfish has broken several records in the areas of migration and gestation. This shark tends to be a highly migratory species: one shark was recorded as travelling 8,000 km (5,000 miles) after being tagged in Washington state, United States, and found again ...
Shark teeth cannot be collected from just any type of rock. Any fossils, including fossil shark teeth, are preserved in sedimentary rocks after falling from their mouth. [13] The sediment that the teeth were found in is used to help determine the age of the shark tooth due to the fossilization process. [15]
[34] [35] [36] Shark teeth are embedded in the gums rather than directly affixed to the jaw as in some fish. [37] Shark teeth form within the jaw move outward in rows until they are eventually dislodged in a manner similar to a conveyor belt. [38] Their scales, called dermal denticles, and teeth are homologous organs. [39]
There are some adult dog breeds that look completely different as puppies. From the Bergamasco to the Tibetian Terrier, these pups have appearances that change significantly as they grow up ...
A benthic predator, it feeds on a range of bony fishes, smaller sharks, crustaceans, and cephalopods. Like other catsharks, the nursehound is oviparous in reproduction. Females deposit large, thick-walled egg cases, two at a time, from March to October, securing them to bunches of seaweed. The eggs take 7–12 months to hatch.