File:Elephant and calf.jpg
From Embryology
No higher resolution available.
Elephant_and_calf.jpg (538 × 404 pixels, file size: 52 KB, MIME type: image/jpeg)
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>
File history
Click on a date/time to view the file as it appeared at that time.
| 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 |
You cannot overwrite this file.
File usage
The following page uses this file:
