Climate change is an undeniable reality, and while natural climate variations have occurred over millennia, the current pace of change exceeds natural expectations, primarily due to human activities. The most noticeable changes are in the levels of carbon dioxide, temperature and rainfall. These changes will not be the same everywhere.

Almost all terrestrial animals have some type of claw. Vertebrates like mammals, reptiles and birds have claws made from a protein called keratin, while invertebrates for example insects, spiders and mites have claw-like structures made from a combination of chitin, calcium carbonate and sclerotin. A typical claw is a curved, strong, often hard appendage at the end of a limb. Nails in humans are also made of keratin, but don’t end in a sharp or curved point. Claws have various functions such as walking, climbing, digging, catching and self-defense. Anyone who owned a cat can confirm their claws are very efficient for defense!