Male kangaroos has 3 penises

Reptiles, birds and dinosaurs, apparently.

So, you know. Terfs might manage it.

If some mystery illness wiped out all of mankind tomorrow, It would be good if women, well the younger ones at least would suddenly get the ability to do this!

Crocs can also do parthenogenisis. I don't blame them, tbh - have you seen a male croc?! No, thank you.

https://www.newscientist.com/article/2377168-crocodiles-can-reproduce-without-males-and-maybe-dinosaurs-could-too/

https://www.newscientist.com/article/2387237-female-stick-insect-clones-itself-despite-having-sex-with-males/

This stick insect has basically given up on the male sex. Even when the female has been inseminated, it seems many are choosing to just clone themselves instead.

So absolutely nothing like humans then.....

Maybe we can have a new rainbow category,
Two Spirit
Three Penis

Female brown trout fake orgasms in more than 50% of their pairings....

Fussy fish fake it | New Scientist

There is a good book called phallacy about this stuff. It is where I leaned some butterflies have light sensitive cells on their genitals. So you can “see” him coming at you and he can “see” it going in. Weird.

Some species of octopuses have an “arm” which is actually his penis.

He will detach it and throw it at the female

Lots of human males like that too 😂

We are supposed to be talking about animals, not humans!.... Oh angler FISH! Sorry thought you were talking about the fishermen there.

What if she just swims away quickly? Does the penis arm just slowly sink to the depths?

Female octupi could potentially wipeout the species by being picky

Three penises? Does that mean he can't cook,do washing OR look after babies?

The quote, from the true facts about angler fish, "hey there pretty lady, nice gonads" has not aged well.

@Stormydayagain yes, male octopods basically rip off their penis arm and lob it at their potential mate. Doesn’t sound very romantic or efficient.

And IIRC the male anglerfish are tiny in comparison to the female, and the female can have several parasitic genital attached to her. If fact, doesn’t she somehow get to choose when to use them?

Octopuses have detachable penises
When removed from the male's body, this appendage continues to swim towards the female, attaches to her mantle -the structure behind their head where you can find their organs - and can be stored in her mantle cavity. Unfortunately for the male, he dies shortly afterwards.

https://m.youtube.com/watch?v=st8-EY71K84

Deep-sea anglerfish have one of the most bizarre and disturbing mating behaviours in the animal kingdom, known as sexual parasitism, where dwarf males bite into and then permanently fuse bodies with larger females. However as off-putting as this may sound, it is actually a remarkably effective strategy.

https://m.youtube.com/watch?v=Z-BbpaNXbxg

The fact that you had to specify “he (the wallaby) …” 😂😂😂

I am currently on a train. I spat my coffee all over the seat in front of me because you made me laugh so hard, and now I am doubled up with the giggles. Thanks for that!!!!

@IcakethereforeIam sounds like my friends ex.

Three vaginas is just showing off. Sperm in, Joey out...so what's the third one for? Bragging.

I heard/read somewhere that the coronal ridge scoops out other men's semen because reproductive competition between males happens inside the vagina and uterus, not outside. Males of other primate species have tiny balls in relation to their size because they compete for mating rights, so they don't have to worry about other males' sperm fertilising their female partner(s)/harem. They therefore produce much smaller amounts of sperm and seminal fluid. Human males compete by flooding the vagina with millions of sperm (most of which are not viable) swimming in copious amounts of semen - and scooping out the most recent rival's sperm from the woman's vagina.

Speaking of swimming, I also read that the sperm do not get to the egg solely under their own steam. There is a significant amount of "wafting" by the vagina, cervix and uterus. Starting with the female orgasm.

So can female humans!

Angler fish, I think sold as monkfish. Female are scary as fuck. Males are parasites incapable of independent life once they have glommed onto a female. Basically, they become a testicle with no brain.

Sorry that has totally killed the mood.

Please resume astonishing sex facts from the animal kingdom!

I get the impression there's not much research on tandem feeding. Tiny study of 13 women here:

'Higher fat content, energy value and total protein concentration was found in TBFM milk during tandem breastfeeding, than in milk after weaning the older child.'

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7835967/

No, although they absorb information from the child's mouth (spit) and use that to calibrate levels of antibodies etc in the milk.

Certainly breasts respond to demand, so if one breast is consistently used by an older child it may well produce more milk and of a different composition. Will see if I can find any evidence to support that - here are two references on 'baby spit backwash' and immunity:

https://onlinelibrary.wiley.com/doi/full/10.1038/cti.2013.1

https://www.sciencedirect.com/science/article/pii/S0092867421002208

This is categorically untrue. Breasts don’t have brains and do not know the age of the child you’re feeding.