Port Jackson Shark Egg Casing

I took this photo on the beach at Fingal Bay as we walked up to The Spit on Monday.

There were lots of Port Jackson shark egg casings along the beach, probably washed up in recent storms.

If anyone is interested here is a link to information about the sharks and the eggs.

https://www.youtube.com/watch?v=FkT4E2nT9KY

[eDorre]

How cool! Thanks for the link!

[Diana]

Well I never, we have many sharks here but I have never seen this before. What a great find and shot. Thanks for the link, it is quite amazing.

[KoalaGardens🐨]

fabulous find, I hope many sharks proliferate

[Issi Bannerman]

Great find!

[Casablanca]

Oh how very interesting

[Susan Wakely]

Fascinating information.

[Joan Robillard]

Learn new things all the time

[Carole Sandford]

Great find!

[Poppo Livy]

Very interesting babs. I never knew anything about shark's eggs casings

[Ingrid]

I had no idea that this could be egg casings! Thank you for adding the link! Very interesting!

[Valerie Chesney]

Wow! I am always learning something new on 365/

[Dione Giorgio]

Oh, never seen one in my life. Very interesting.

[Kate]

Quite interesting…looks like a kind of seaweed

[KV]

Never seen one of these… quite interesting.

[haskar]

Nice find. Very interesting. Thakns for link.

[Beryl Lloyd]

Such a interesting find - and nicely captured !

[Lady Magpie (Heather)]

Good find and a nice capture.

[Judith Johnson]

How interesting, and I thought it was just a piece of seaweed!

[Margaret Brown]

Interesting, super find

[Bep]

Interesting info. Thanks for sharing the link.

[bkb in the city]

Great find and capture

[Granny7(Denise)]

Super find

[carol white]

Great find and capture

[Joyce Lancaster]

What a great and interesting find Babs

[Pat Knowles]

So interesting…those egg casings are very well thought out!

[Pat]

How interesting Babs, thanks for sharing this. Another school day for me, fav!

[Ryan]

Very interesting! Love beach finds like this

[Pyrrhula]

Great find and capture to show it.

[Bill]

Thanks for sharing this. I would have never guessed that. I thought sharks were live born.

[Babs]

@edorreandresen @ludwigsdiana @jamibann @casablanca @wakelys @joansmor @carole_sandford @terryliv @ingrid01 @happysnaps @sangwann @k9photo @kvphoto @haskar @beryl @ladymagpie @busylady @craftymeg @gijsje @bkbinthecity @denful @carolmw @thistle01 @happypat @pattyblue @ryan161 @pyrrhula Thanks. We get quite a lot of Port Jackson sharks in this area

@koalagardens Judging by the number of egg casings here on the beach I think it has been a good year for the Port Jackson shark

@cwbill Most sharks are live born, but a few are oviparous which means they lay eggs.

I think the Port Jackson shark is a variety of bullhead shark and there are about 9 varieties that lay eggs.
https://www.youtube.com/watch?v=FkT4E2nT9KY

[KWind]

Great textures!

[Nick]

Wow, so interesting - not seen anything like this before.

[Kathy A]

I have seen these in aquariums but never washed up on a beach