视频展示了一只鲎在水族箱中缓慢移动的场景。这只鲎的身体呈棕色，外壳坚硬，形状像一个盾牌。它的头部和尾部清晰可见，尾部有一条长长的尾巴。背景中有岩石和一些绿色植物，底部是细小的沙粒。鲎在沙地上缓缓爬行，周围有一些气泡漂浮在水中，显示出水下的环境。整体画面给人一种宁静而神秘的感觉。
The video shows a horseshoe crab in an aquarium setting. The crab is positioned on a sandy substrate with some rocks and aquatic plants in the background. The lighting highlights the texture of the crab's shell, which appears to be a reddish-brown color. The crab remains mostly stationary throughout the video, with only slight movements of its legs and tail. The overall scene is calm and serene, capturing the natural behavior of the horseshoe crab in a controlled environment.
A horseshoe crab with a reddish-brown shell is seen on a gravel surface in an underwater environment with rocks and some green aquatic plants in the background. The crab begins to move forward, gradually lifting its front left leg and then its front right leg. It continues to walk slowly, lifting and placing its legs in a coordinated manner. The crab's movement is steady and deliberate as it progresses across the gravel.