It has entered what I call the “twilight period” of a hamster’s life.

When investigating how ice ages begin and end, and feedbacks are considered. A positive feedback will accentuate a dynamic and a negative feedback will mute it. In the 1970s, and the author of today’s , , , which posits that Earth has provided feedbacks that maintain environmental . Under that hypothesis, environmental variables such as atmospheric and levels, levels, and Earth’s surface temperature have been kept relatively constant by a combination of geophysical, geochemical, and life processes, which have maintained Earth’s inhabitability. The homeostatic dynamics were mainly negative feedbacks. If positive feedbacks dominate, then “runaway” conditions happen. In astrophysics, are responsible for a wide range of phenomena. A runaway greenhouse effect may be responsible for . Climate scientists today are concerned that burning the hydrocarbons that fuel the industrial age . Mass extinctions are the result of Earth's becoming largely uninhabitable by the organisms existing during the extinction event. The ecosystems then collapse Mass extinction specialist recently proposed his as a direct challenge to the Gaia hypothesis.

Babies look perplexed and sound squealy all the time.

So if we care about our pets we try to compensate by making every day a good one.

Youngsters are brimming with manic energy.

Biologists consider extinctions to be due to failure to adapt to environmental changes, and the “environment” includes other organisms. Exactly how species go extinct is still poorly understood, but the idea that the battle for survival is a common understanding among biologists, and ecosystems . makes the relationship explicit. There are many interacting variables, including those environmental nutrients, both inorganic and those provided by life forms. The ability of an organism or species to adapt is partly dependent on how specialized it is and how unique its habitat is. Absolute numbers, geographic distribution, position in the food chain (higher in the food chain is riskier), mobility, and reproductive rates all impact extinction risk. During the , about 80% of all animals were immobile. Today, 80% of all animals are mobile. The immobile animals were at higher extinction risk, for obvious reasons.

That “baby fat” look will have all but disappeared.

The evolutionary game for a species is for enough of its members to survive long enough to produce viable offspring. Organisms have adopted myriad survival and reproduction strategies, with astonishing diversity. There are many ways to win or lose that game, but every species eventually loses. More than 99.9% of all species that have ever lived on Earth became extinct. A mammalian species has a life expectancy of around a million years, while a marine invertebrate species has one of about . Today’s global extinction rate is more than 100 times the “normal” rate (“background rate”), and perhaps far greater, such as 10,000 times, due to human domination of the ecosphere. The current rates could rival and equal the rates during the greatest mass extinction of all: the .

But the point of this is to let readers know that there’s a time when it’s OK to let go.
In these inquiries the pet owner describes certain symptoms their hamster is exhibiting.

I mentioned that the eyes become dull.

Land colonization was perhaps the Devonian’s most interesting event. The adaptations invented by aquatic life to survive in terrestrial environments were many and varied. Most importantly, the organism would no longer be surrounded by water and had to manage . Nutrient acquisition and reproductive practices would have to change, and the protection that water provided from was gone; plants and animals devised methods to protect themselves from the Sun’s radiation. Also, moving on land and in the air became major bioengineering projects for animals. Breathing air instead of water presented challenges. The pioneers who left water led both aquatic and terrestrial existences. Amphibians had both , and arthropods, whose exoskeletons readily solved the desiccation and structural support problems, evolved to replace their gills, which were probably book gills.

But when the hamster advocate asks the age of the hamster a different picture emerges.

So you’ve got to use common sense and intuition.

Today’s mainstream science has nothing to say about any intent behind the appearance of life on Earth. Today’s science pursues the physical mechanism. When life first appeared on Earth, the evolutionary process that led to humanity began. The USA's population has , and that is primarily because is still strong here. In all other Western nations, there is virtually no controversy over evolution being a fact of existence, and those nations view the controversy over evolution in the USA with befuddlement. Enlightened scientists will state that science’s story of evolution is one of process and history, not intent, and really has nothing to say about a creator.

It becomes clear that the pet owner is seeing the hamster gradually dying of natural causes.

You see everything in black and white!

The state that emerges at the end of history is liberal insofar as it recognizes and protects through a system of law man's universal right to freedom, and democratic insofar as it exists only with the consent of the governed. For Kojève, this so-called "universal homogenous state" found real-life embodiment in the countries of postwar Western Europe - precisely those flabby, prosperous, self-satisfied, inward-looking, weak-willed states whose grandest project was nothing more heroic than the creation of the Common Market.[] But this was only to be expected. For human history and the conflict that characterized it was based on the existence of "contradictions": primitive man's quest for mutual recognition, the dialectic of the master and slave, the transformation and mastery of nature, the struggle for the universal recognition of rights, and the dichotomy between proletarian and capitalist. But in the universal homogenous state, all prior contradictions are resolved and all human needs are satisfied. There is no struggle or conflict over "large" issues, and consequently no need for generals or statesmen; what remains is primarily economic activity. And indeed, Kojève's life was consistent with his teaching. Believing that there was no more work for philosophers as well, since Hegel (correctly understood) had already achieved absolute knowledge, Kojève left teaching after the war and spent the remainder of his life working as a bureaucrat in the European Economic Community, until his death in 1968.