dolphin and turtle gets moving

models/extra/add armature.txt

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+press t till menu pops up
+switch to Create tab
+scroll down till you see Other: section then choose Armature (human in t pose golden icon)
+
+in the lower right part of blender switch to object data tab (human in t pose silver icon)
+under display check the X-ray to see bones even when they are inside objects
+
+while in object mode select armature bone that we created earlier with right click
+move it by pressing g to good place then rotate it with r
+press tab to switch to edit mode
+
+now you can choose either end of the bone and extend it by moving it with g
+
+to make new bones just press the lover part of the bone (bigger triangle) and extrude
+
+name bones properly so you know which one is which
+you can do so by checking upper right part of blender and in the tree view expand Armature till you see bones
+double click on the bone to rename it

models/extra/how to animate.txt

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+you need to first have armature and bones all assigned to different objects
+
+now select any bone and switch from object mode to pose mode
+
+switch to Animation tab in the upper left
+
+make sure you are on frame zero (look at the lower left your marker should be on the 0)
+
+press i
+
+menu: "Insert keyframe menu" will pop up
+
+choose LocRotScale
+
+then move a few frames forward
+
+move the bones in desired location with r
+
+press i
+
+menu: "Insert keyframe menu" will pop up
+
+choose LocRotScale
+
+repeat these steps till you are happy with the animation
+
+test animation with Alt + a
+
+
+dont forget to put markers to show where each animation starts and ends
+
+move mouse over frame timeline
+press m to create marker
+press Ctrl + m to rename it