Tip: For joints 1/8 inch to Â½ inch, use sanded grout. For joints up to 1/8 inch, use non-sanded grout. â¢ Before grouting, remove all of your tile spacers. Again, leaving the spacers in place and grouting over them will compromise the integrity of the grout.
The assessment, conducted by the Primate Specialist Group of the International Union for the Conservation of Nature (IUCN), concludes that 23 lemurs qualify as Critically Endangered - the highest class of threat. Fifty-two are in the Endangered classification, and a further 19 Vulnerable to extinction.
According to Defenders of Wildlife, a wildlife charity organization, sea otters are endangered because they were nearly hunted to extinction in the 1700s and 1800s. Sea otters once numbered in the hundreds of thousands, but fur traders hunted them in large numbers and, consequently, reduced their population size. The International Fur Seal Treaty of 1911, the Marine Mammal Protection Act and the Endangered Species Act of 1977 helped stop the sea otter population from dwindling. However, the sea otter population has been slow to recover. In addition to oil spills, sea otters also face other human threats.