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Planorbarius corneus, common name the great ramshorn, is a relatively large species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral or left-coiling shells.
A pair of horns on a male impala Anatomy of an animal's horn. A horn is a permanent pointed projection on the head of various animals that consists of a covering of keratin and other proteins surrounding a core of live bone. Horns are distinct from antlers, which are not permanent.
Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod molluscs.Unlike most molluscs, the blood of ram's horn snails contains iron-based hemoglobin instead of copper-based hemocyanin. [3]
Arguments against dehorning include the following: Dehorning (removing fully grown horns) without the use of anesthesia is extremely painful to the animal. [8] A 2011 study that surveyed 639 farmers found that 52 percent of farmers reported that disbudding caused pain lasting more than six hours, that only 10 percent of the farmers used local anesthesia before cauterization, 5 percent provided ...
Jupiter Ammon, depicted in a terracotta fragment. A fossil ammonite, showing its horn-like spiral. Ammon, eventually Amon-Ra, was a deity in the Egyptian pantheon whose popularity grew over the years, until growing into a monotheistic religion in a way similar to the proposal that the Judeo-Christian-Islamic deity evolved out of the Ancient Semitic pantheon. [2]
A 2018 study that was recently brought to light in articles by the BBC, Washington Post, Fortune and more claims that cell phones are causing young people to grow "horns.". The research, conducted ...
The term ramshorn snail or ram's horn snail is used in two different ways. In the aquarium trade it is used to describe various kinds of freshwater snails whose shells are planispiral, meaning that the shell is a flat coil. Such shells resemble a coil of rope, or (as the name suggests) a ram's horn.
In older rams, the field of view may be restricted by the position of the horn tip. As a result, rams begin to wear down these horns. [3] Their binocular vision is limited to a relatively small facial arc of 60 percent; only in this area can they see any depth of field; in the rest of their visual arc, mouflon can mainly just perceive movement ...