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.
The koala is not an endangered species at this time. They are protected by the Australian government, however. Having said that, there are many things people can do to minim â¦ ise the increasing likelihood of koalas reaching the stage of being endangered (a stage which is coming closer every day).ince conservation efforts  begun in the 1990s, the koalas have risen significantly in numbers,  and on the whole, they are considered a secure species.     It should be noted that koalas are not  officially endangered, and are currently not in danger of  extinction.