Hedgehogs normally lose their quills (spines) during shedding periods. This is referred to as quilling and usually occurs when hedgehogs are babies and juveniles and large amounts of quills are shed. The first quilling takes place at 2 months old. The baby hedgehog’s fine quills are dropped and the replacement quills are longer and thicker. […]
Sheep, goats and pigs were the first animals to be domesticated, about 9000 years ago. The earliest archaeological evidence of domestic pigs was found in eastern Turkey. Archaeology indicates that cattle were first domesticated in the Fertile Crescent about 8000 years ago. Evidence of domestic cattle was also found in Pakistan, from about 7000 years […]
It is hard to keep track of the numbers of fish in the rivers, lakes and oceans because they move around so much. It also hard to protect them for this reason. Fish which return to the same stream every year to spawn are easier to keep track of. The main reason fish become endangered […]
