Why The Dog's Nose Is Cold by Margaret Eytinge poem

"What makes the dog's nose always cold?"
I'll try to tell you, curls of gold,
If you will sit upon my knee
And very good and quiet be.
Well, years and years and years ago—
How many I don't really know—
There came a rain on sea and shore;
Its like was never seen before
Or since. It fell unceasing down
Till all the world began to drown.
But just before it down did pour,
An old, old man—his name was Noah—
Built him an ark, that he might save
His family from a watery grave;
And in it also he designed
To shelter two of every kind
Of beast. Well, dear, when it was done,
And heavy clouds obscured the sun,
The Noah folks to it quickly ran,
And then the animals began
To gravely march along in pairs.
The leopards, tigers, wolves and bears,
The deer, the hippopotamuses,
The rabbits, squirrels, elks, walruses,
The camels, goats, and cats, and donkeys,
The tall giraffes, the beavers, monkeys,
The rats, the big rhinoceroses,
The dromedaries and the horses,
The sheep, the mice, the kangaroos,
Hyenas, elephants, koodoos,
And many more—'twould take all day,
My dear, the very names to say—
And at the very, very end
Of the procession, by his friend
And master, faithful dog was seen.
The lifelong time he'd helping been
To drive the crowd of creatures in;
And now, with loud, exultant bark,
He gayly sprang aboard the bark.
Alas! So crowded was the space
He could not in it find a place;
So, patiently, he turned about,—
Stood half-way in, and half-way out,
And those extremely heavy showers
Descended through nine hundred hours
And more; and, darling, at their close
Most frozen was his honest nose;
And never could it lose again
The dampness of that dreadful rain.
And that is what, my curls of gold,
Made all the doggies' noses cold.