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==Elephant and Calf== | ==Elephant and Calf== | ||
[[Category:Animal Development]] | Three elephant species: African savannah elephant (''Loxodonta africana''), African forest elephant (''Loxodonta cyclotis''), and Asian elephant (''Elephas maximus''). The elephant has a long pregnancy lasting 21 months. | ||
===Developmental Timeline=== | |||
Days below are post-ovulatory. | |||
* 50 days - embryonic vesicle earliest observation | |||
* 62 days - embryo detectable | |||
* 71 days - embryonic heartbeat and allantois visible as a single sacculation | |||
* 76 days - allantois subdivided in four compartments | |||
* 95 days - head, rump, front and hind legs distinguishable | |||
* 95 to 103 days - choriovitelline placenta was replaced by the chorioallantoic placenta | |||
* 95 to 116 days - midgut herniation | |||
Data from<ref><pubmed>18387665</pubmed></ref> | |||
==References== | |||
<references/> | |||
===Articles=== | |||
<pubmed>17164195</pubmed> | |||
<pubmed>12828919</pubmed> | |||
<pubmed>15364209</pubmed> | |||
[[Category:Animal Development]][[Category:Elephant]] | |||
Latest revision as of 20:24, 1 November 2013
Elephant and Calf
Three elephant species: African savannah elephant (Loxodonta africana), African forest elephant (Loxodonta cyclotis), and Asian elephant (Elephas maximus). The elephant has a long pregnancy lasting 21 months.
Developmental Timeline
Days below are post-ovulatory.
- 50 days - embryonic vesicle earliest observation
- 62 days - embryo detectable
- 71 days - embryonic heartbeat and allantois visible as a single sacculation
- 76 days - allantois subdivided in four compartments
- 95 days - head, rump, front and hind legs distinguishable
- 95 to 103 days - choriovitelline placenta was replaced by the chorioallantoic placenta
- 95 to 116 days - midgut herniation
Data from[1]
References
- ↑ <pubmed>18387665</pubmed>
Articles
<pubmed>17164195</pubmed> <pubmed>12828919</pubmed> <pubmed>15364209</pubmed>
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:58, 24 October 2010 |  | 538 × 404 (52 KB) | S8600021 (talk | contribs) | ==Elephant and Calf== Category:Animal Development |
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