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Re: Giraffe - Animal of the Month: April 2014
Posted: Wed Apr 09, 2014 10:17 am
by Flutterby
Lovely pics everyone!!
Richprins wrote:I also think that the ones with 4 or 5 horns should be separate species...but what do I know...?

?
Which giraffes have 4 or 5 horns?

Re: Giraffe - Animal of the Month: April 2014
Posted: Wed Apr 09, 2014 4:01 pm
by Flutterby
Re: Giraffe - Animal of the Month: April 2014
Posted: Wed Apr 09, 2014 4:13 pm
by Flutterby
Skull and ossicones
Both sexes have prominent horn-like structures called ossicones, which are formed from ossified cartilage, covered in skin and fused to the skull at the parietal bones. As they have blood vessles, the ossicones may have a role in thermoregulation, and are also used in combat between males. Appearance is a reliable guide to the sex or age of a giraffe: the ossicones of females and young are thin and display tufts of hair on top, whereas those of adult males end in knobs and tend to be bald on top. Also, a median lump, which is more prominent in males, emerges at the front of the skull. Males develop calcium deposits that form bumps on their skulls as they age. A giraffe's skull is lightened by multiple sinuses. However, as males age, their skulls become heavier and more club-like, helping them become more dominant in combat. The upper jaw has a grooved palate and lacks front teeth.
Source:
http://en.wikipedia.org/wiki/Giraffe
Immature
Male

Re: Giraffe - Animal of the Month: April 2014
Posted: Wed Apr 09, 2014 4:16 pm
by nan
naughty Ellie
one of the Giraffes seems to be pregnant

Re: Giraffe - Animal of the Month: April 2014
Posted: Wed Apr 09, 2014 4:17 pm
by Flutterby
Actually never noticed that nan, but I think you're right.

Re: Giraffe - Animal of the Month: April 2014
Posted: Wed Apr 09, 2014 6:38 pm
by Richprins
Flutterby wrote:
Richprins wrote:I also think that the ones with 4 or 5 horns should be separate species...but what do I know...?

?
Which giraffes have 4 or 5 horns?

I have searched...in vain! I just recall one of the subspecies having 4 horns as a kid...maybe they are dead? (with the nosebridge growth as a fifth)
Maybe the mind is going...
I'm sure nobody will mock me, and this incident is now closed.

Re: Giraffe - Animal of the Month: April 2014
Posted: Wed Apr 09, 2014 8:26 pm
by Lisbeth
The females have longer hair on the horns

Re: Giraffe - Animal of the Month: April 2014
Posted: Wed Apr 09, 2014 8:29 pm
by Lisbeth
A female having a bite

Re: Giraffe - Animal of the Month: April 2014
Posted: Wed Apr 09, 2014 8:34 pm
by Lisbeth
A biiiig male in KTP

Re: Giraffe - Animal of the Month: April 2014
Posted: Wed Apr 09, 2014 8:36 pm
by Mel
I think, we should compare the ellies, Flutts.
When was your sighting of that exactly?