Loai cua khong lo nang toi 40kg.

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Loai cua khong lo nang toi 40kg

Cac nha nghien cuu Truong Dai hoc Greifswald va Vien nghien cuu Max-Planck cua Duc vua cho cong bo tai lieu ve su phat hien loai cua lon nhat the gioi co ten "Birgus latro" o khu rung nguyen sinh tren "dao Giang sinh" nam giua An Do Duong..

Loai cua khong lo nang toi 40kg - Ban co dau.
Loai cua khong lo nang toi 40kg - Ban khong dau.
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Loai cua khong lo nang toi 40kg.

Thang 12/2008, cac chuyen gia  Duc da toi "dao Giang sinh" va sau ba tuan theo doi da phat hien dau vet cua loai cua khong lo. Hai nha khoa hoc  Steffen Harzsch va Bill Hansson rat quan tam  toi nhung diem dac biet o loai cua co ten Birgus Latro nay (con goi la Ganjokrebs hoac Kokoskrebs) hien chi song o mot so dao nho tren cac dai duong. 

Loai cua Birgus latro khong lo  co the nang toi 40kg, chi song tren can va chuyen an trai dua. Anh: Wikimedia

Chung to bang trai bong, nang toi 40kg, co 10 chan, mat do, co the dai 40cm, co kha nang bien doi tu mau xanh - tim sang do - da cam va khi giuong cang co the dai toi mot met, cap cang to khoe, co the cap dut ngon tay nguoi mot cach de dang.

Birgus latro chuyen an la va trai dua. Dac biet, chung song tren can, khong biet  boi, xuong nuoc se bi chet duoi.

Giao su Harzsch cho biet, loai cua nay co he khuu giac rat tinh te. Thu nghiem  khuu giac rieng re va nghien cuu  cam ung hoa hoc doi voi chung, cac nha khoa hoc  da ket luan cua Birgus latro co mot he thong  khuu giac cuc ky tot.

Doi voi cac nha nghien cuu  tien hoa thi day la mot moi quan tam  dac biet, vi dieu nay the hien rang nhieu loai sinh vat, trong do co loai cua Birgus latro, da co mot "buoc nhay" tu bien len sinh song tren dat lien.

Thuc te, loai cua nay da duoc phat hien tu cach day hon 150 nam, khi nha khoa hoc  Anh Charles  Darwin, nguoi sang lap  hoc thuyet tien hoa hien dai, nam 1836 co dip dat chan toi An Do  Duong da mo ta loai cua chuyen an la va trai dua nay. Tuy nhien, tu do den nay rat it co nhung quan sat chi tiet ve loai cua Birgus latro.

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Updated: 04/06/2009 | Views: 730 | Comments: 0

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Hien tai chua co binh luan nao ve bai viet Loai cua khong lo nang toi 40kg!

Ban co y kien gi ve bai viet Loai cua khong lo nang toi 40kg nay? Hay goi suy nghi, binh luan, danh gia, loi khuyen ... cua ban ve bai viet Loai cua khong lo nang toi 40kg ban tai day.

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