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Crocodile: Nile

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Pilane
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Unread postby Pilane » Fri Mar 14, 2008 8:23 pm

That is a nile croc...

3 crocodile species in Africa but only Nile Crocodile in South Africa

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LadyRaven
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Unread postby LadyRaven » Fri Mar 14, 2008 8:41 pm

Ah, I see.. Thanks.
That's what I thought...

Is it possible for Kruger crocs to become somewhat deformed? I really must locate the other picture I took, it must have been a couple years back now, but he had the most unusual risen section on the top of his head. Is this normal? Looked like nothing I'd ever seen before, and I've seen my fair share of crocs. :|

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Unread postby Agama » Sat Mar 15, 2008 6:27 pm

gwendolen wrote:Crocs eat very little. They don't really need much food because they get their energy from the sun.

A somewhat misleading statement.
Crocodiles are like most reptiles poikilothermic.
In other words they rely on external factors, like the sun, to heat their bodies to the desired temperature.
Once they reach their desired temperature they thermo-regulate, moving into and out of water or into shade to maintain the desired temperature.
That is where it stops.
They do not tap energy from the sun that will enable them to survive with the minimum intake of food.
They can and do consume huge meals and in summertime eat regularly.
They, like all reptiles eat less frequent in the colder months of our winters and may in this time go without food for lengthy periods.
If they did not have ample food intake during the summer they may die during winter, because they do not have the reserves to see them through winter.
This may explain why one will sometimes see photo's of impala etc. in close proximity of crocodiles.
It may also explain why they have not eaten on the hippopotamus.
In cold weather the cannot digest food.
Regards, Agama

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Unread postby Ludwig » Mon Mar 17, 2008 12:04 pm

Pilane wrote:Deformities are normally a result of injury.
Being part of a croc family is a risky buisness :wink:

Once I saw this one.
Image

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LadyRaven
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Unread postby LadyRaven » Mon Mar 17, 2008 12:16 pm

Aha! I found the picture!!

He was in the water by the Lower Sabie bridge.

Image

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Imberbe
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Unread postby Imberbe » Mon Mar 17, 2008 2:47 pm

Thats a perfectly normal crocodile. They develop these "knobs" and it gets more pronounced with age. The black "hole" is just a shadow. (See the shadows of the scales on his neck.)
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Unread postby Agama » Tue Mar 18, 2008 10:03 pm

Crocodiles have both a septate lung and a diaphragm—an organ not found in snakes, lizards, or birds.
But the crocodile diaphragm is also somewhat different from that in mammals.
It is not muscular but is attached to the liver and movement of this liver/diaphragm acts like a piston to inflate the lungs, with muscles attaching to the pelvis.
(The mammalian [including human] diaphragm pulls the liver in the same way a crocodilian one does, creating a visceral piston, but the way this is accomplished differs in crocodiles and mammals..."
I Googled crocodile diaphragm and amongst others this came up. The scaly skin hides a lot of secrets!

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Pilane
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Unread postby Pilane » Wed Mar 19, 2008 6:13 pm

I know agama but it does fuction differently an also looks very different although called a 'diaphragm' by some. It is very different as you pointed out yourself and it should't be called a diaphragm as it is not a muscular partition.... The liver actually pull on this 'diaphragm' and not the other way around...
To breathe in, a croc has to move its liver and other organs backwards
:wink:

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Re: Nile crocodile

Unread postby shangri-la » Tue Oct 21, 2008 4:09 pm

ImageLarge

Lion Buffalo and croc !!!!!! what a sight
Last edited by Elsa on Mon Jun 16, 2014 12:24 pm, edited 1 time in total.
Reason: pic resized.
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Re: Nile crocodile

Unread postby Nannie » Tue Jun 30, 2009 12:15 pm

Sunset dam's green "gremlin"

Image
Last edited by Nannie on Tue Sep 28, 2010 9:51 am, edited 1 time in total.

Richprins

Re: Nile crocodile

Unread postby Richprins » Sun Jul 26, 2009 8:01 pm

Nice pics!

Here's a video and pics from Crook's Corner in Northern Kruger a few weeks ago, eating a fresh nyala bull.

View My Video

Image

Image

Interestingly, I thought the antelope may have got stuck in the unseasonably underwater Limpopo sand!! :?

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bert
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Re: Nile crocodile

Unread postby bert » Sat Nov 07, 2009 11:53 am

Image

At Sunset Lower Sabie, where this guy gave me the hungry look.
When you are lucky they get real close to the shore & car

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Re: Nile crocodile

Unread postby oddesy » Sat Nov 07, 2009 11:59 am

Brilliant picture Bert!! :clap: :thumbs_up: nicely focused on the eyes :cam:
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Re: Nile crocodile

Unread postby Wild about cats » Mon Nov 16, 2009 6:58 pm

Okay, Im focussing on the guy in the background, the one in the front is just there to compare with
Image
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Re: Nile crocodile

Unread postby oddesy » Mon Nov 16, 2009 7:18 pm

WAC that is one huge crocodile :shock: :shock: :thumbs_up:
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