It is a jumping spider. Check the links http://bugguide.net/node/view/26008/bgpage http://bugguide.net/node/view/3722.
The spider you are describing is likely a black widow spider (Latrodectus mactans). Female black widows have a distinctive red hourglass shape on their abdomen rather than a white heart shape, however. It's always best to exercise caution around any unfamiliar spider species.
There is a spider called a Northern Green Jumping Spider, or Clown Spider (mopsus mormon), with a light green body and red spotted legs. You would most likely find one during the day in Australia. They have excellent vision and it wouldn't be likely for one not to see you sneaking up on it. These spiders actually vary in color. Some have red spots, but some do not. I couldn't find any other spider that matched your description.
The spider you are describing sounds like a type of spider mimic called the Spinybacked Orbweaver (Gasteracantha cancriformis). It has a distinctive black body with a red heart-shaped pattern on its back, along with yellow spots, and spines that may resemble a scorpion's tail. They are not harmful to humans and are known for their unique appearance.
A spider that has a brick colored heart-shaped marking surrounded by white on its back and lives on the ground might be an orb spider or a white tail spider. This spider might also be a common garden spider found in much of the U.S.
The back end of a spider is called the abdomen. It is the largest part of the spider's body and contains vital organs such as the heart, respiratory system, and digestive system.
The Smiley Face Spider has a heart like shape on the butt.
Black widow
heart,spider,rainbow and fire
It sounds like a wolf spider. The female is much larger than the male. See the related link for an identification chart.
The spider you are describing is likely a black widow spider (Latrodectus mactans). Female black widows have a distinctive red hourglass shape on their abdomen rather than a white heart shape, however. It's always best to exercise caution around any unfamiliar spider species.
I love riddles!! What kind? i have caught a spider with those exact same markings... the white "spot" on top of it's abdomen looks more like a white heart, and i found this spider in my yard in Sacramento, CA.... from what i have learned this spider is a Daring (or Bold) Jumping Spider... harmless and non aggressive supossedly...
A spider monkey has four chamber like the human heart
Black Widow, but it's more of a red color.
There is a spider called a Northern Green Jumping Spider, or Clown Spider (mopsus mormon), with a light green body and red spotted legs. You would most likely find one during the day in Australia. They have excellent vision and it wouldn't be likely for one not to see you sneaking up on it. These spiders actually vary in color. Some have red spots, but some do not. I couldn't find any other spider that matched your description.
The spider you are describing sounds like a type of spider mimic called the Spinybacked Orbweaver (Gasteracantha cancriformis). It has a distinctive black body with a red heart-shaped pattern on its back, along with yellow spots, and spines that may resemble a scorpion's tail. They are not harmful to humans and are known for their unique appearance.
sensitive heart
Black Heart was created in 1991.