The wood mouse (Apodemus sylvaticus) is a common murid rodent from Europe and northwestern Africa. It is closely related to the yellow-necked mouse(Apodemus flavicollis) but differs in that it has no band of yellow fur around the neck, has slightly smaller ears, and is usually slightly smaller overall: around 90 mm (3.54 in) in length. It is found across most of Europe and is a very common and widespread species, is commensal with people and is sometimes considered a pest.[1] Other common names are long-tailed field mouse, field mouse, common field mouse, and European wood mouse.[2]
The wood mouse (Apodemus sylvaticus) is a common murid rodent from Europe and northwestern Africa. It is closely related to the yellow-necked mouse(Apodemus flavicollis) but differs in that it has no band of yellow fur around the neck, has slightly smaller ears, and is usually slightly smaller overall: around 90 mm (3.54 in) in length. It is found across most of Europe and is a very common and widespread species, is commensal with people and is sometimes considered a pest.[1] Other common names are long-tailed field mouse, field mouse, common field mouse, and European wood mouse.[2]
Moles are small mammals adapted to a subterranean lifestyle (i.e., fossorial). They have cylindrical bodies, velvety fur, very small, inconspicuous ears and eyes,[1]reduced hindlimbs and short, powerful forelimbs with large paws adapted for digging. The term “mole” is especially and most properly used for “true moles” of the Talpidaefamily in the order Eulipotyphla found in most parts of North America,[2]Asia, and Europe; although it may also refer to other completely unrelated mammals of Australia and southern Africa that have also evolved the mole body plan; it is not commonly used for some talpids, such as desmans and shrew-moles, which do not quite fit the common definition of “mole”.
Moles are small mammals adapted to a subterranean lifestyle (i.e., fossorial). They have cylindrical bodies, velvety fur, very small, inconspicuous ears and eyes,[1]reduced hindlimbs and short, powerful forelimbs with large paws adapted for digging. The term “mole” is especially and most properly used for “true moles” of the Talpidaefamily in the order Eulipotyphla found in most parts of North America,[2]Asia, and Europe; although it may also refer to other completely unrelated mammals of Australia and southern Africa that have also evolved the mole body plan; it is not commonly used for some talpids, such as desmans and shrew-moles, which do not quite fit the common definition of “mole”.
Moles are small mammals adapted to a subterranean lifestyle (i.e., fossorial). They have cylindrical bodies, velvety fur, very small, inconspicuous ears and eyes,[1]reduced hindlimbs and short, powerful forelimbs with large paws adapted for digging. The term “mole” is especially and most properly used for “true moles” of the Talpidaefamily in the order Eulipotyphla found in most parts of North America,[2]Asia, and Europe; although it may also refer to other completely unrelated mammals of Australia and southern Africa that have also evolved the mole body plan; it is not commonly used for some talpids, such as desmans and shrew-moles, which do not quite fit the common definition of “mole”.
Sawfishes, also known as carpenter sharks, are a family of rayscharacterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged in a way that resembles a saw. Several species of sawfishes can grow to about 7 m (23 ft).[2][3][4] The family as a whole is largely unknown and little studied. The Pristidae are the only living family within the orderPristiformes, whose name comes from the Ancient Greek: πρίστης, translit.prístēs, lit. ‘saw, sawyer’.[5]
Sawfishes, also known as carpenter sharks, are a family of rayscharacterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged in a way that resembles a saw. Several species of sawfishes can grow to about 7 m (23 ft).[2][3][4] The family as a whole is largely unknown and little studied. The Pristidae are the only living family within the orderPristiformes, whose name comes from the Ancient Greek: πρίστης, translit.prístēs, lit. ‘saw, sawyer’.[5]
Sawfishes, also known as carpenter sharks, are a family of rayscharacterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged in a way that resembles a saw. Several species of sawfishes can grow to about 7 m (23 ft).[2][3][4] The family as a whole is largely unknown and little studied. The Pristidae are the only living family within the orderPristiformes, whose name comes from the Ancient Greek: πρίστης, translit.prístēs, lit. ‘saw, sawyer’.[5]
Poeciliopsis prolifica, or the blackstripe livebearer, is a species of small freshwater fish in the family Poeciliidae. It is endemic to Mexico.[3] It is a viviparousspecies and the female can have several clutches of young developing internally at the same time, hence the specific nameprolifica, from the Latin proles, “offspring” and ferax, “rich, fruitful” in reference to the great number of young produced.
Poeciliopsis prolifica, or the blackstripe livebearer, is a species of small freshwater fish in the family Poeciliidae. It is endemic to Mexico.[3] It is a viviparousspecies and the female can have several clutches of young developing internally at the same time, hence the specific nameprolifica, from the Latin proles, “offspring” and ferax, “rich, fruitful” in reference to the great number of young produced.
Poeciliopsis prolifica, or the blackstripe livebearer, is a species of small freshwater fish in the family Poeciliidae. It is endemic to Mexico.[3] It is a viviparousspecies and the female can have several clutches of young developing internally at the same time, hence the specific nameprolifica, from the Latin proles, “offspring” and ferax, “rich, fruitful” in reference to the great number of young produced.
Fish bone is any bone of a fish. Fish bone also includes the bony, delicate parts of the skeleton of bony fish, such as ribs and fin rays, but especially the ossification of connective tissue lying transversely inclined backwards to the ribs between the muscle segments and having no contact with the spine.
Not all fish have fish bones in this sense; for instance, eels and anglerfish do not.
There are several series of fish bones: Epineuralia, Epicentralia, Epipleuralia and Myorhabdoi.
Fish bone is any bone of a fish. Fish bone also includes the bony, delicate parts of the skeleton of bony fish, such as ribs and fin rays, but especially the ossification of connective tissue lying transversely inclined backwards to the ribs between the muscle segments and having no contact with the spine.
Not all fish have fish bones in this sense; for instance, eels and anglerfish do not.
There are several series of fish bones: Epineuralia, Epicentralia, Epipleuralia and Myorhabdoi.
An otolith (Greek: ὠτο-, ōto- ear + λῐ́θος, líthos, a stone), also called statoconium or otoconium or statolith, is a calcium carbonate structure in the saccule or utricle of the inner ear, specifically in the vestibular labyrinth of vertebrates. They have been identified in both extinct and extant vertebrates.[1]Counting the annual growth rings on the otoliths is a common technique in estimating the age of fish. The saccule and utricle, in turn, together make the otolith organs.
The skin of most fishes are covered with scales, which, in many cases, are animal reflectors or produce animal coloration. Scales vary enormously in size, shape, structure, and extent, ranging from strong and rigid armour plates in fishes such as shrimpfishes and boxfishes, to microscopic or absent in fishes such as eels and anglerfishes. The morphology of a scale can be used to identify the species of fish it came from.
