Ouroboros

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="100"
    height="100"
    viewBox="0 0 465 465"
>
    <path
        d="M276.877 24.439C266.062 8.435 250.783 0 232.5 0c-18.941 0-36.839 9.533-47.491 25.087-48.354 10.527-92.31 37.325-124.052 75.706C28.097 140.526 10 190.852 10 242.5c0 59.432 23.144 115.307 65.169 157.331C117.193 441.855 173.068 465 232.5 465s115.307-23.145 157.331-65.169C431.856 357.807 455 301.932 455 242.5c0-105.927-74.717-197.112-178.123-218.061zM232.5 450C118.084 450 25 356.916 25 242.5c0-98.346 69.848-183.866 166.078-203.361a8.87 8.87 0 0 0 .292-.064l.011-.002c.005-.003.009-.003.013-.003.005-.002.009-.001.015-.004.004-.001.01.003.014-.004.005-.001.008-.003.014-.003.005-.001.012 0 .014-.004l.057-.015.056-.015c.005.001.008-.002.013-.003a.026.026 0 0 1 .011-.003c.004-.001.01.001.011-.004a7.47 7.47 0 0 0 4.428-3.336l.001-.003.004-.007a.016.016 0 0 1 .004-.007l.003-.005.007-.013C203.817 22.718 217.444 15 232.5 15c10.648 0 19.684 3.906 26.981 11.617-14.357 5.266-24.641 19.079-24.641 35.219a37.452 37.452 0 0 0 18.816 32.532C247.299 98.039 240.073 100 232.5 100c-11.801 0-22.773-4.736-30.895-13.335a7.506 7.506 0 0 0-7.211-2.142c-34.83 8.402-66.41 28.556-88.924 56.747C82.597 169.912 70 205.863 70 242.5 70 332.103 142.897 405 232.5 405S395 332.103 395 242.5c0-36.638-12.596-72.59-35.467-101.234-22.128-27.713-53.017-47.65-87.139-56.302a7.47 7.47 0 0 0-2.563-.771c-11.397-1.261-19.992-10.873-19.992-22.357 0-12.365 10.059-22.457 22.423-22.497a7.538 7.538 0 0 0 1.629-.188C370.324 58.683 440 143.711 440 242.5 440 356.916 346.916 450 232.5 450zM380 242.5c0 81.332-66.168 147.5-147.5 147.5S85 323.832 85 242.5c0-67.014 44.582-124.979 108.921-142.374C204.505 109.75 218.041 115 232.5 115c14.461 0 28-5.254 38.585-14.884C335.422 117.511 380 175.479 380 242.5z"
    />
    <path
        d="M215.979 49.218c4.411 0 8-3.589 8-8s-3.589-8-8-8-8 3.589-8 8 3.589 8 8 8z"
    />
</svg>