Showing posts with label self-defense. Show all posts
Showing posts with label self-defense. Show all posts

Friday, October 23, 2015

More Offensive Defenses

Thought for the day:  We should be too big to take offense and too noble to give it. [Abraham Lincoln}

For sure, it's an admirable thing for humans to be big and noble, but in the animal kingdom, self-defense very often depends on being... offensive. Like the proverb goes, The best defense is a good offense. Predators are much more interested in killing and consuming other animals than they are in inviting them to share a meal at a nice restaurant, so animals had to come up with some rather interesting ways to defend themselves. In the last post, we looked at the vile toxins some animals spray out their posteriors, (MUCH worse than we humans do after eating too many burritos.) and at the putrid projectile vomit favored by others. We also covered poisons that ooze through the skin, and at a lizard who shoots predators by squirting blood out of his eye. And my personal favorite, the boxer crab, a tiny fella who carries anemones around in his claws to protect himself. Today, we're going to examine a handful of other animals, whose means of self-defense are even more bizarre. And somewhat glorious.

[wikipedia- credit: U.S. National Oceanic & Atmospheric Administration]
Like this pink-winged flying fish. Isn't he glorious? To evade predators, he swims at speeds of up to 37 MPH, which allows him to break through the surface of the water. Then he uses his large pectoral fins like wings, and can remain airborne for up to 656 feet. What a sight that must be to see!

But he isn't offensive. In a fight vs. flight dilemma, this fish literally chooses flight. Let's go from this fish, which is kind of beautiful, to something considerably less so. Time to up the disgusting factor.



This creature is called a hagfish. It's actually considered a living fossil, because it pretty much looks today as it did 300 million years ago. (How do they know...?) Anyhow, it's the only known animal to contain a skull without a vertebral column.

How does it protect itself? Well, have you ever caught an eel when you were fishing? Ever been slimed by an eel? Well, as gross as that is, it is NOTHING compared to the sliming capabilities of a hagfish. You've gotta see it to believe it...


I KNOW! Isn't that wild? (I wonder if scientists have discovered any useful applications for that stuff yet?)

[wikimedia- credit: David Perry]

Check out this guy. He's an Iberian ribbed newt, indigenous to the Iberian peninsula (ergo his name) and Morocco. See those little bumps down his side? They're ribs. When he's being threatened, he actually pushes his ribs right through the skin so he can use them as weapons. As if having his own built-in weapons weren't enough, the exposed bones are also covered with poison.


[wikimedia- credit: Gustavocavia]


Here's another critter who uses his own bones as weapons. This hairy frog from Central Africa cracks his toe bones and pushes them through the skin to form sharp claws for fighting off attackers.











[wikipedia- credit: Piekfrosch]

We're all familiar with porcupines, and what an impressive shield of defense their quills provide, but they aren't the only critters with built-in suits of armor. Meet the pangolin, who makes his home throughout parts of Africa and Asia. His whole body is covered with large scales, making him look kinda like a big ol' pine cone. It's fairly tough, too, which is why some ancient warriors actually used them to make their own suits of armor. You can't really tell in the picture, but the pangolin has very large powerful claws, which they mostly use to get at insects, but rarely as weapons. As a last resort, they can use their tail as a weapon, or they can spray out a smelly goo from their anus. But their first means of self-defense...?







[wikipedia- credit: Sandup Kumer]


They roll up into a tight little ball. Think the lions are fooled?

They can roll, too. I read that one was seen rolling down a hill at a high rate of speed in Sumatra, which must have been a hoot, but I couldn't find any video of it. Too bad.






[wikimedia- credit: Chris Stubbs]
Armadillos can also roll up into a ball. Maybe I'm weird, but I really LIKE armadillos. I know a lot of people consider them to be a nuisance, little more than a rat on a half-shell, but I think they're amazing- looking creatures. Like the armored tanks of the animal kingdom. 'Course, I don't actually have any around here digging up our yard, so I have the luxury of admiring them from afar.






[wikipedia- credit: French Avatar]

Believe it or not, this is a 3-banded armadillo. Looks like a melon, doesn't it?

Or maybe it looks like a ... ball?











Check this video out for a laugh. 



These two posts barely scratch the surface of the amazing ways animals defend themselves, but I'd much rather pique your interest than bore you to tears. I hope, no matter how disgusting you found some of this to be, you've also gained a bit more of an appreciation for the resiliency and self-defense mechanisms found within the animal kingdom.

Humor is a great defense, and an offense, too. Usually the recipient isn't too happy about it, but the people around are laughing.  [Robin Williams]

Do you think animals have a sense of humor? I'd read some accounts indicating that they do, and that some of them laugh and like to be tickled. But whether or not they have a sense of humor, I have a feeling this video will make YOU laugh. Some animals enjoy fermented beverages, too, and they also have to pay the piper, so to speak...


                                       Until next time, take care of yourselves. And each other.


Friday, October 16, 2015

A Matter of Defense

Thought for the day:  You'd better not mess with me. I know karate, kung fu, judo, tae kwon do, jujitsu, and a whole bunch of other bad-ass words. 


When humans are threatened, we have an impressive range of  self-defense tools, both psychological and physical, but to find the most impressive and disgusting wow factors in survival, we have to take a look at the animal kingdom. Which is what we're gonna do.

Hey! What can I say? If it's disgusting... I'm gonna share it with you. I'm generous like that.




hognose snake [wikimedia]
To tell the truth, the humble hognose snake inspired me to write this post, and he isn't disgusting at all. Not that I'm a snake-lover, but this guy with his little turned up snout is kinda cute. In some pictures, it looks like he's wearing a perpetual smile. And he's harmless, too.  Non-venomous, and he hardly ever bites.

But this snake is a really grrrrreat pretender with a boatload of bravado.




[source: Dana Oliver, GA Department of Wildlife]

When threatened, this harmless guy will puff up like a big bad cobra, which has earned him another name... puff adder. He'll even hiss like a cobra.









[wikipedia- credit: Albert Herring, VA State Parks]

But if all that bluff and bluster doesn't do the trick? No problem. He'll just roll over onto his back with his tongue hanging out, and... play dead. Even manages to emit a foul scent to help convince whatever or whoever is bothering him to go away... nothing here worth eating, buddy, just keep moving... because I'm dead, dead, DEAD, dammit.

But the thing is, after learning about this snake, I decided to research some of the self-defense techniques used by other animals. Turns out, some of their defensive methods are rather offensive and disgusting. So natch, I'm gonna share some of that stuff with you. (Aren't you lucky?)

The hognose snake, of course, isn't the only critter who plays dead in the face of danger. Probably the best-known is the opossum, which actually collapses and falls into a coma-like state that can last for hours. Unfortunately, far too many of them collapse right in the middle of the road. Not exactly the smartest move (Or should I say non-move?) in terms of their survival.

Nature already gives many creatures an appearance that blends in well with their natural environments, but many more also have the ability to change their camouflage to better match a changing environment. Like the chameleon and the walking stick insect, and the king of 'em all, the cuttlefish, which not only changes color, but also changes its texture.

Oh, and how about the skunk? Even if you've never actually encountered a Pepe La Pew in person, I'm sure you know all about how they send predators scurrying by lifting their tails and letting loose with a foul-smelling spray. I mean FOUL. Really really really foul. Foul enough to chase away a bear. And it's so bad, it can even cause temporary blindness.

But enough about stuff you probably already know. Let's turn now to some of the more bizarre... and disgusting... stuff you might NOT know...
[wikipedia- credit: Patrick Coin]
Like this guy. This rather innocuous-looking bug is called a bombardier beetle. Not only does he spray a noxious toxin out his butt to protect himself, but that toxin is scorching hot, to boot, so he both poisons AND burns. When he feels threatened, he initiates a squeezing action that forces the chemicals and catalyzing enzymes from two separate chambers in his body to combine, and the resultant chemical reaction yields a high-velocity toxic spray which is at approximately the temperature of boiling water. Believe it or not, these beetle chemists live on every continent but Antarctica.

[credit: Chris Stubbs, Edmonton Zoo]


The bombardier beetle isn't the only critter that squirts poison out its butt. The Malaysian exploding ant has large glands filled with a corrosive venom, and all it has to do is contract its abdomen to burst the glands and spray predators. (No mixing needed. No boiling temperature either, but still. Kinda impressive.) Some bugs, like the potato beetle and the cereal leaf beetle, are somewhat lazier, but equally as off-putting. They cover themselves in feces. Other animals, rather than roll in poop, ooze poison through their skin. The motyxia sequoiae, a type of millipede, bioluminesces if threatened, while oozing cyanide and other foul-tasting chemicals through its skin. The sea cucumber, as shown in the picture, is capable of oozing a sticky poison, but it does something else even more astounding... and yes, disgusting.



[wikimedia]

And here it is. Know what the sea cucumber is doing in this shot? It is self-eviscerating. Really. In extreme circumstances, to reeeeeally convince a predator that it's dead, a sea cucumber will squeeze its muscles so tightly, it actually forces some of its organs out its anus. Talk about extreme.

Getting sick of hearing about the disgusting stuff animals shoot out their butts to defend themselves? Okay, let's look at the other end, then. There's always vomiting. (Sorry.) Yeah, some critters use that as a means of self-defense, too. Mostly birds. Like the European roller bird, the fulmar, and the turkey buzzard. The roller bird spews a nasty-smelling orange liquid, and the fulmar produces a putrid oil in its stomach, which it projectile vomits in the faces of predators. It's bad news for other birds, too, because it mats their feathers, which makes flying impossible. The turkey buzzard is a little less genteel, if one considers projectile vomiting genteel. He simply arfs up the entire disgusting contents of his stomach into one untidy putrid pile. Makes him lighter, so he can get away faster, and the pile of barf smells so bad, most predators quickly lose interest. (Wouldn't YOU?)

Okay, don't want to hear anything more about vomit, either, huh? Okay, well, I've got a super odd one for you. The Texas horned lizard puffs up a bit when threatened, which isn't all that unusual, but what he does next is astounding. He shoots blood... out of his eye! And believe it or not, the stream of blood can travel up to five feet! Wanta see...? (Of course you do!)


Pretty cool, huh? The best is yet to come, but I'll save it for next week.

Rah! Rah! Siss Boo BAH! [wikimedia- credit: Hectonichus]

Looky here. I'm ending on a ♪cute note ♫. Nothing at all disgusting about this cute little cheerleader look-alike, who's only about an inch in size. He's a boxer crab, and although it looks like he's holding pom poms in his claws, they're actually anemones. The crab helps the anemones by toting them around, and they help him by providing protection. They're the muscle. So to speak. Don't they make a lovely menage a trois?

                                                           Such a beautiful relationship...


Some of you might find it odd that one of the words I used to tag this post is appreciation. And that's because, no matter how disgusting we might find the behavior of some animals to be, it is fascinating to learn about them. The more we discover about them, the better we can appreciate them. Not that I'd recommend attempting to make friends with a bombardier beetle...

                                        Until next time, take care of yourselves. And each other.

P.S. Here's news about something that should be of interest to both readers and writers alike. Author Jessica Therrien is featuring a Read and Review Challenge on her blog from now until the end of March, in which a long list of authors has agreed to provide a FREE book to any reader who is willing to write and post a review. Each month, anyone who writes and posts a review for one of these books will be entered into a drawing for a ten-dollar Amazon gift card, and anyone who writes five reviews over the entire challenge period becomes eligible for the grand prize drawing of a fifty-dollar gift card. What's not to love, right? Authors, here's a chance for your book to get more exposure and potential reviews, and readers, FREE BOOKS! Need I say more? Go ahead. Check it out. The list of books is growing all the time.