Sea cows, also known as sirenians
, are aquatic plant-eating mammals.
The first sirenians
were grass-eating terrestrial mammals that lived some 50 million years ago.
These include 124 catalogued specimens of 17 species of cetaceans (nine whales and eight dolphins) and one species of sirenian
ALSO, this week we sample the cafe society of Dinas Mawddwy and bid farewell to the members of the Sirenian
Singers from north-east Wales as they travel to the Eternal City to stir the crowd ahead of the Italy v Wales rugby international.
Peripheral zone of alteration with tunnel network structures, probably made by microbial activity, are observed in thin sections of fossil sirenian
ribs (Astibia et al., 2005).
In sections on Precambrian, Palaeozoic, Mesozoic, and Cenozoic, the topics include the great oxygenation, ancient scorpions, halfway to mammals, sexual selection, grassed up, stuck in time, left-handed snails, and Sirenian
Yn ymuno a nhw bydd tri chor - Cor Cantorion Sirenian
o Wrecsam, Cor Godre'r Garth o ardal Caerdydd a Chor Siambr Adelaide o Awstralia, enillwyr cystadleuaeth Cor y Byd yn Eisteddfod Llangollen eleni.
Singers will be heralding the begining of the Christmas period with a ''Seasonal Wassail'' at All Saints Church, Gresford on Saturday.
At the end of the first day, the Cantorion Sirenian
Singers, who have previously sold out the Symphony Hall, will perform music from five continents.
Some of these names may be unfamiliar: SIRENIAN
(a member of the mammalian order Sirenia--sea cows); SPRINGER (a flying fish); WANDEROO (a langur monkey); STAGGARD (a stag in its 4th year); COMMENSAL (an animal which lives attached to another and shares its food); WARRIGAL (Australian wild dog); KOLINSKI (a mink); HARTEBEEST(an antelope); DIDELPHIS (an opossum); BUSH BABY (an African lemur); FILANDER (an intestinal worm; also a Kangaroo); MASTODON (an extinct elephant-like mammal); POPINJAY (a parrot); PETREL (a small sea bird); CURASSOW (a turkey-like bird); STANYEL (a kestrel)."
The seagrass beds (including Wooramel Bank, the world's largest sea grass meadow) support one of the world's biggest populations of dugong (a type of sirenian
or sea cow) -- an estimated 10,000 individuals.
It featured a 200-strong choir taking to the stage to deliver the piece, featuring the Sirenian
Singers, Cr Caerdydd, Cr y Cwm and Cr Ieuenctid Mn.
The show comes to Mold's Clwyd Theatr Cymru this month, combining energetic dance with the Sirenian
Singers, Rambert's associate orchestra and soloists Elin Manahan Thomas and Adrian Powter Speaking to the Daily Post he explains how his career has come full circle.
The choir features The Sirenian
Singers, Cr Caerdydd, The South African Fezeka Choir and the newly-formed Llangollen International Eisteddfod Chorus.
Singers will be celebrating their 30th anniversary at theWilliam Aston Hall, Wrexham at 7.30pm on Saturday.