Page 92 - World of Animals - Issue #36
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                                                                                                 Why do
                                                                                                 some insects have
                                                                                                 feathery antennae?
                                                                                                 Feathery antennae are one of the main
                                                                                                 distinguishing features between moths and

                                                                                                 butterflies. But it’s not just moths that are in
                                                                                                 possession of these extravagant appendages;
                                                                                                 many other insects have feathery feelers
                                                                                                 too. Antennae are mainly used as chemical

                                                                                                 receptors so the insect can sniff out the
                                                                                                 pheromones of a female over great distances.
                                                                                                 If you were to zoom in on these feathery
            Who are the                                                                          structures, you would see they are covered
                                                                                                 in thousands of minute branches of hair, with
            International                                                                        some species boasting as many as 60,000
                                                                                                 ‘feathers’. These all act as part of the moth’s
            Whaling                                                                              olfactory system. In short, the more feathery
                                                                                                 the antennae, the greater the surface area.
            Commission, and                                                                      This allows the antennae to come into contact
                                                                                                 with the largest volume of air possible,
                                                                                                 granting a greater sense of smell.
            what do they do?
                                                                                                 Some species have
                                                                                                 thousands of tiny hairs
            The International Whaling Commission (IWC), is an   whaling. However, as they are a voluntary organisation,   covering their antennae
            international voluntary organisation. Their goal is to   their guidelines are not legally enforceable and member
            “provide for the proper conservation of whale stocks   countries are free to leave at any time. Most famously
            and thus make possible the orderly development of   the IWC imposed a moratorium on whaling, banning all
            the whaling industry”. There are currently 88 countries   commercial capture and killing, but since the 1986 ban
            signed up to the IWC. The organisation reviews the state   Iceland and Norway have carried on regardless and Japan
            of the ocean’s whale population and governs worldwide   continues under the guise of scientific research.



              Which houseplants are
              most poisonous to cats?
              A lot of people worry about keeping   damage. For dogs, the outcome is less
              poinsettias in their house when they   severe but can result in some serious
              have pets, and while it is true they can   gastrointestinal discomfort. So to
              cause some discomfort to your pet,   avoid any catastrophes, make sure to
              they are unlikely to be harmful. Lilies,   watch out for flowers from the Lilium

              however, are another story. These   or Hemerocallis species. If you do have
              are some of the most popular plants   pets it’s definitely worth checking which

              in bouquets, but, unlike poinsettia,   plants can cause harm to your furry
              contact can be fatal. For cats, just a   companion before making a purchase,
              bite or two of some leaves, or even   as there are more than 700 plants
              some pollen groomed from the coat   containing toxins that may be harmful to
              can result in kidney failure and liver   both cats and dogs.

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       092-094_AnimalAnswers.indd   92                                                                                       20/07/2016   17:22
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