vandas

U.S. National Zoo mourns the death of giant panda cub, just eight days after it was bornTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。$ K. T; s3 ?1 c+ w5 |" [
5.39.217.763 f2 M0 x5 T4 P5 Q
The giant panda cub born a week ago at the National Zoo in Washington has died.
$ L: \' l- p6 ]% A
* z: E. M3 s; k' QTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Zoo officials said in a press release that the cub was found dead on Sunday morning after panda keepers heard sounds of distress from its mother, Mei Xiang.
5 C. O2 u; s. G$ W公仔箱論壇6 H; ?  e0 Q8 D: n0 H1 n1 f3 @$ v
Staffers were able to retrieve the cub about an hour later. The cub appeared to be in good condition, and there were no outward signs of trauma or infection.+ e5 m* Y* K, k
It was not immediately clear what had cause its death.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。0 K* |% \& d& P6 }1 v, n9 F

" ~% O% [" _% \9 D
3 Q7 L$ {8 x6 j6 e) j1 i) C& |; Utvb now,tvbnow,bttvbMother: Mei Xiang gave birth Sunday at 10:46 p.m. She is pictured in a Dec. 19, 2011 file phototvb now,tvbnow,bttvb; ]4 r5 T' J5 U3 |! i2 k

9 J! N! O% ?0 T! [% ^6 uTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。The cub had been a surprise at the zoo. Fourteen-year-old Mei Xiang had five failed pregnancies before giving birth, and only one panda cub has survived at the zoo in the past.
' t7 c8 V- J! e% S0 H5 `
' S7 @8 O/ s6 _4 h4 n+ J& Ktvb now,tvbnow,bttvbPanda cubs are born about the size ofa stick of butter and are delicate infants. Panda mothers are about 1,000 times heavier than their cubs, which are born with their eyes closed. tvb now,tvbnow,bttvb: S3 Z* t& w% b1 W: S# L  J
: s4 t5 @% S4 A
The delicate cubs have died in the past when accidentally crushed by mom. That happened in two different zoos in China in 2009 and 2010 when mothers killed their young while attempting to nurse.5.39.217.769 u, p/ u9 y4 E, \' {9 c
5.39.217.763 X6 s& I3 i4 C" B2 {5 \4 s, w; {6 k
The zoo's first panda couple, Ling Ling and Hsing Hsing, arrived from China in 1972 and had five cubs during the 1980s, but none lived more than a few days. TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。+ A/ P- y5 a2 Y+ J! V
TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。7 b5 A7 S7 L  K0 y
One of the cubs was stillborn, two others died of pneumonia within a day, another died from lack of oxygen after birth, and the final cub died of an infection after four days.! M' _% X0 z$ n+ v: _

! k& C' j7 @7 S5 o公仔箱論壇Panda experts have said the first weeks of life are critical for the panda cubs as mothers have to make sure they stay warm and get enough to eat.公仔箱論壇3 a) B1 ~+ f+ F/ j4 H0 @, [# g

4 m( V" W3 W  G) ?; X  H5 [
( G: O1 _. [; L; a: M9 s. iTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Sad news: Dennis W. Kelly (L), Director of the Smithsonian's National Zoo, and Suzan Murray (R), chief veterinarian of Smithsonian's National Zoo talk about the sudden death of the baby panda cub during a press conference
' }. R* a1 |  _6 c0 C5 `2 C' r5 J6 L
公仔箱論壇3 c0 v) v* ]& X4 Z* c( d
The panda died just eight days after it was born5 P; X9 z) \/ ?5 c) k" G* T

7 P$ w3 L% J; m# r% _6 z& ~' L'It's kind of a nerve-racking period for the folks that are monitoring mom and cub,' Rebecca Snyder, the curator of mammals at Atlanta's zoo, said last week. Atlanta is one of only two other American zoos to have had cubs.2 j7 q; }& _) @. o2 \) J
tvb now,tvbnow,bttvb8 m: V" L$ K. C3 R: ~9 ~3 i+ v1 \
Atlanta has had three cubs, and the San Diego zoo has had six, including a cub born this year. A panda couple in Memphis has yet to have a cub, despite several tries. No otherU.S. zoos have pandas.
5 A1 b/ N; E$ D3 V4 @; F/ H' K' \: RTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。! I3 A: e" ^0 m8 g! v' |$ y
The cub had not yet been named in accordance with Chinese tradition - it was to receive a name after 100 days on Dec. 24. Had the cub survived until then, it would have been roughly the size of a loaf of bread and weighed around 10 pounds.
" w3 ^  u! p1 t7 Gtvb now,tvbnow,bttvb5.39.217.76% w3 j! S1 e4 ]- l/ H
Mei Xiang gave birth Sunday at 10:46 p.m., the zoo said. The staff could hear the cub, but were unable to immediately see it because Mei Xiang has built a large nest in her den.
: _. k6 `" G9 C2 [  B$ U4 H公仔箱論壇tvb now,tvbnow,bttvb8 ^3 f4 Q; R3 B; v3 @
In a news release, Dennis Kelly, the zoo's director, said he was thrilled. 'I'm cautiously optimistic as we haven't seen the cub yet, but we know that Mei is a good mother,' Kelly said.公仔箱論壇) N; _" z( {5 H4 s0 J4 I
tvb now,tvbnow,bttvb+ ]: K( b& m; @' _, q! p* @
Watch: Dennis Kelly, the zoo's director, monitor's Mei via the panda cam
0 h6 `+ I7 l4 z7 i3 d公仔箱論壇
) J! d. m' ~9 E% G, x( |公仔箱論壇: A9 o. \, O+ }5 z
Yummy: Mei is rewarded with honey water when she participates in an ultrasound earlier in September * h  A" s: e- b7 A/ [8 j$ R# \. r
TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。" W! V4 c- E2 |2 Y
, e6 \7 d# q5 Y+ {4 D6 y
Careful: The staff found the dead cub after hearing distress calls coming from Mei Xiang
: E) ~0 n3 Q. `) ^: N
* p- P% |1 i- u9 Y3 ]+ {TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。The cub was the second born to Mei Xiang and Tian Tian as the result of artificial insemination.
" L6 [; N4 ?0 w' u: V'Mei Xiang is behaving exactly the same way she did when Tai Shan was born,' Chief Veterinarian Suzan Murray said.
1 P% \" @1 E; f, E( y" G0 O6 ^5 }  S* ?# ~
'Sheis cradling her cub closely, and she looks so tired, but every time shetries to lay down, the cub squawks and she sits right up and cradles the cub more closely.'
7 r: j% I5 p, V$ G# ]+ ^% ATVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。She continued: 'She is the poster child for a perfect panda mom.'
3 \) F* b4 d# t0 N. T公仔箱論壇5.39.217.76% x7 Y: t( Y0 q% }
For the past several months, the panda house was closed to visitors so Mei could rest. She was especially sensitive noise, so her doctors kept a quiet watch on the soon-to-be mother.& g; u( r0 e( O

% [- E% b3 H4 U. t公仔箱論壇She worked feverishly on building her nest for her newborn, shredding bamboo and cradling her toy as she waited for the baby.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。1 z9 s$ B5 C2 [

! C; x) r/ J" ]- O  `! e  {; H( O5 otvb now,tvbnow,bttvb'[Mei] is cradling her cub closely, and shelooks so tired, but every time she tries to lay down, the cub squawks and she sits right up and cradles the cub more closely.'1 q! J8 Y5 m- P' I1 D0 Q; b$ X
Chief Veterinarian Suzan MurrayTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。7 O3 h, z  v* p7 J4 |; _
公仔箱論壇. p8 b5 r* o) g" H7 v6 U7 T
Veterinarians tried to give her an ultrasound during this time, as they were unsure if she was pregnant. She was artificially inseminated in April and on average, panda pregnancies last 90-160 days.$ l, l) {% J# c: a

  |" ?) G8 Q% X7 x9 oMei Xiang has had five consecutive pseudopregnancies since 2007 and had a less than a 10 per cent chance of being pregnant after so many failed attempts.公仔箱論壇4 q6 y' |, F2 R7 ^
5.39.217.76/ t+ m# j( H) ?& o* K7 g9 @
Female giant pandas behave the same way if they are pregnant or not, according to the Zoo's website.* J) j4 J! I1 q/ m* o0 h' {8 V

6 [8 ^$ x- ]) @4 Q8 @  Y2 EUnlike humans, doctors cannot determine if a female panda is pregnant by analyzing her hormones. + V+ t1 `8 ]8 E( _9 L
5.39.217.765 s: ?6 i, J  _
5.39.217.76$ X( i+ L) A9 |" E! y: ]
Preparing: For the past several months, the panda house was closed to visitors so Mei could rest
* l9 w; _  L: Y! I( l5.39.217.76
6 S& g/ Y: P- S5.39.217.76
% ?! P- g" E. Atvb now,tvbnow,bttvbConception: She was artificially inseminated in April and on average, panda pregnancies last 90-160 daystvb now,tvbnow,bttvb, m$ [# b+ R1 u% g0 l

) Y( y" d* a; B8 u; m: itvb now,tvbnow,bttvbDuring a pseudopregnancy a female giant panda’s hormones and behavior are identical to a pregnancy, but she never conceives a cub.
+ r6 K" Q- T# j9 Z) U) f* u* r公仔箱論壇
' X+ Q5 H3 x# A  U/ l5.39.217.76What Mei Xiang’s hormones can predict, however, is when we can expect the birth of a cub, or the end of a pseudopregnancy.