It was able to repel the Euroasian peoples who flooded in and took over the Western Empire.
The western part of the Roman Empire fell under the strain of the invasions of by the Germanic people. The eastern part of the Roman Empire was not affected by these invasion and therefore continued to exist. Note that Byzantine Empire is a term which has been coined by historians to indicate the eastern part of the Roman Empire after the fall of the western part. The people in question did not know this term and called their empire Roman Empire.
They hunted animal for food and shelter.
They blockaded along the Eastern seaboard and then the colonists could not receive goods or food to survive.
The western empire was swamped by an influx of Goths and others moving westwards. No form of government could have stopped this.
The less the region was removed from the Earth's north frost pole (located in the northeastern part of Russia near Alaska), the more difficult life became and, consequently, the region has a higher technological ceiling. The western part of the empire of Rome was farther from the pole of frost than the eastern part. So when western Rome reached its technological ceiling, eastern Rome (Byzantium) had a growth reserve of about 500-1000 years.
Trade
Trade
Trade
The Western Empire existed separately from the Eastern Empire from 285 AD to 476 AD, so for 191 years.
The Eastern Cougar was declared extinct in 2011. So, technically it doesn't survive.
The western part of the Roman Empire fell under the strain of the invasions of by the Germanic people. The eastern part of the Roman Empire was not affected by these invasion and therefore continued to exist. Note that Byzantine Empire is a term which has been coined by historians to indicate the eastern part of the Roman Empire after the fall of the western part. The people in question did not know this term and called their empire Roman Empire.
A pollution free underwater environment would help any number of animals that live in the sea, to survive and prosper.
Both the eastern and western diamondback rattlesnakes are known to live in excess of 20 years if they survive the first few months after birth when they are especially vulnerable to predation.
There is a difference in the words survive and thrive. The word survive means to continue to live or exists in spite of an accident or tragedy. The word thrive means to grow well or vigorously or to prosper or flourish.
Because the western empire was plagued by invasions and existed only in name by the 5th century. The eastern empire by contrast survived until 1447
They hunted animal for food and shelter.
Survival of the fittest, as in nature, dictates that businesses that respond to their environment better will perform better. These businesses will make more money and survive longer than businesses that underperform.