Animals with holes in them - are there any?

Factual Questions
41

[QUOTE=jackelope]
What about sponges? According to wikipedia, they’re technically animals, and they’ve got holes through them. Here is one you can see light coming through; here is the same photo, but I’ve circled where you can see light coming through it. (You may all bow down to my mad Photoshop skillz.)
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What you have there is a sponge skeleton. The actual sponge animals are cellular.

42

[QUOTE=Darwin’s Finch]
What you have there is a sponge skeleton. The actual sponge animals are cellular.
[/QUOTE]
Dammit.

43

[QUOTE=Zahava424]
There’s a show called “Animal Cops”? Seriously?
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There are two of them with that name, but six series on Animal Planet devoted to the same thing.

Animal Cops: Houston
Animal Cops: Detroit
Animal Precinct (NY City)
Miami Animal Police
Animal Planet Heroes: San Francisco
Animal Planet Heroes: Phoenix

44

[QUOTE=CannyDan]
Great suggestion! The comb jellies are some of the most morphologically complex soft bodied creatures, as seen here.
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Honestly, are those not just the most amazing things you’ve ever seen? Isn’t it remarkable those are actually living creatures? If I hadn’t seen jellyfish before, I’d think those were computer art pictures of alien beings.

45

They’re lovely; the Seattle Aquarium has a couple jellyfish tanks, and you could stand all day and watch them gracefully swim to and fro.

46

[QUOTE=jackelope]
Dammit.
[/QUOTE]

Hang on though, because sponges (or some of them at least) are definitely perforate - they pump sea water through themselves continuously.

47

[QUOTE=Mangetout]
Hang on though, because sponges (or some of them at least) are definitely perforate - they pump sea water through themselves continuously.
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I’m not sure sponges count as perforate, even if they do have holes through which they pump seawater. There are a variety of aquatic organisms which have the means to pump water through themselves for feeding or propulsion purposes (cephalopods being a good example of the latter). If sponges, count, I’d say octopuses would have to, as well.

48

I wouldn’t necessarily include all sponges, but I think there might be some that are line-of-sight perforate.

49

Darn you groman. Scooping me on the damn cow hole. That was mine. grumble

50

There are some butterflies or moths that have transparent/translucent “windows” in their wings. I have no idea whether any of them have actual holes.

51

[QUOTE=Avarie537]
There are two of them with that name, but six series on Animal Planet devoted to the same thing.

Animal Cops: Houston
Animal Cops: Detroit
Animal Precinct (NY City)
Miami Animal Police
Animal Planet Heroes: San Francisco
Animal Planet Heroes: Phoenix
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And is there an “Animal Cops: Special Victims Unit” or a “Cold Case (of Fish)”?

52

[QUOTE=Fiver]
…or a “Cold Case (of Fish)”?
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In that case it would be a “Cod Case”…

Alright, don´t make a fuss, I´ll go and shoot myself now.