My newest fort is the strangest one I've ever played.
The first caravan showed up with the "No outpost liason?" message, which I had never seen before. After looking it up and discovering that it can mean the civ you chose is on the brink of extinction and the.army responsible might be on its way Right Now, I started large scale fortification efforts. An indoor pasture for the livestock. Dedicated craftspace for a smithy, even though I normally don't bother for a year or so while I establish other industry. A wood stockpile several hundred logs large, in case I have to seal myself in my hole for an extended time...
And then, it came. The megabeast warning comes up announcing the arrival of the dreaded were...gecko. Who munched a horse and a baby llama before reverting to human form and quickly vanishing from the map.
I begin getting swarms of highly skilled dwarves as migrants...another dire warning sign that something may be up. Next years caravan also had no liason. But shortly after it left, we had the second great megabeast show up. A goblin. A friendly goblin. Who was sweating profusely. And buck naked. He wandered a bit and then got bored and left.
Next migrant wave had a high master hunter, who tore off into the wilderness and promptly got the bejesus scared out of him by a goose. Look, its a goose. You have a crossbow. SHOOT IT. Meanwhile nobody seems to care about the three ALLIGATORS who waltzed in through the front door and settled into my well, at least until one got feisty and took a nip at a laborer. Unlike most dwarves in this situation, Urist McRambo pounced on the thing with abandon, and he apparently had awesome friends cause four others jumped in as well. They pummel the thing into unconsciousness but none of them can finish it off, so I conscript a dwarf into the militia to skewer it. Except the weapon stockpile is on the other side of Mr. Gator and he won't go near it.
By now the first five are in danger of dying from dehydration or exhaustion, so I draft no less than 50 dwarves into nakedwrestler squads to go strangle the poor thing. Turns out even 50 dwarves punching a gator in the head are no match for the strength of its hard noggin...until one of my miners, enroute to get a drink, wanders in, sees the gator, freaks out, and beheads it with one shot.
Where two megabeasts failed, one goddamn gator almost ended my fort.
I now have a standing militia, and cage traps to try and catch the other two. If they're as tough as that first one, I might have found a valuable biological toothy weapon against goblin invasion.
Oh...and the third caravan had a liason. False alarm!
...its been a weird fort.